All about dinosaurs, fossils and prehistoric animals by Everything Dinosaur team members.

News stories and articles that do not necessarily feature extinct animals.

19 03, 2013

Saltwater Crocodile Shot after Fears of Attacks on School Children

By |2023-02-13T17:49:08+00:00March 19th, 2013|Categories: Animal News Stories|0 Comments

Community Lived in Fear of Crocodile

The remote community of Palumpa located in the Daly River Reserve (Northern Territory, Australia), can breathe a sigh of relief after local wildlife rangers and police officers trapped and shot a four and a half metre long Saltwater crocodile that had been threatening to attack school children.

Saltwater Crocodile

The crocodile, the second four metre plus specimen to be captured in the Northern Territory this week, was trapped and shot at a small billabong on the outskirts of the town.  Locals had reported that the crocodile had been in the area for about two years and it sometimes took up residence at a river causeway crossing used by children on their way to school.

Having to dodge the attentions of a large predator, getting on for fifteen feet in length would have been enough to deter all but the most determined scholar.  Unfortunately, attacks by Saltwater crocodiles (sometimes also referred to as Estuarine crocodiles), are becoming increasingly common in the Northern Territory as the crocodile population continues to increase after the imposition of a hunting ban some forty years ago.

The Difference Between a Crocodile and an Alligator

Crocodile and Alligator comparison.

Crocodile (top) and Alligator (bottom).

A Call to Reinstate Hunting of Crocodiles

A number of Government officials have called for a reinstating of the permit system to hunt crocodiles, others favour a formal crocodile cull to reduce the threat of crocodile attacks.  For the school children at the small community of Palumpa, some 150 miles south-west of Darwin, their daily school run just got a little safer.

For models and replicas of extinct and extant archosaurs, visit Everything Dinosaur’s award-winning model section of the company’s website: Archosaurs, Dinosaurs and Prehistoric Animal Figures.

4 03, 2013

Thailand Due to Call for New Crocodile Export Limits to be Lifted

By |2024-04-29T10:31:23+01:00March 4th, 2013|Categories: Animal News Stories|0 Comments

Thailand Government Calls for Siamese and Saltwater Crocodile Protection to be Downgraded

With an increasing number of Australian officials keen to permit the culling of Saltwater crocodiles in the Northern Territory in a bid to reduce the risk of fatal crocodile attacks, it seems that crocodilians in south-east Asia are going to be threatened by a two-pronged attack.  The Fisheries Department of the Thailand Government is hoping to gain support for a proposal to ease restrictions on crocodile exports.

Call for Resumption of Crocodile Exports

Officials will try to get support from members of the Convention on the International Trade in Endangered Species of Wild Fauna and Flora (CITES) to downgrade the status of two species of crocodiles so that the country can continue to export goods made from crocodiles.  The Siamese crocodile (Crocodylus siamensis) grows to lengths in excess of three metres and it was once relatively widespread in south-east Asia, but now it is critically endangered with scientists estimating that there may be only a few wild Siamese crocodiles left in Thailand.  Siamese crocodiles are bred extensively in captivity and along with the Saltwater crocodile (Crocodylus porosus), the Fisheries Department of the Thailand Government are trying to get them downgraded to Appendix II from the much more restricted Appendix I status.

Crocodile

At the moment, international trade in these two species of reptile is severely restricted, however, the 16th international CITES conference being held in Bangkok (Thailand) over the next two weeks will give the officials the opportunity to press their case.

A Model of a Siamese Crocodile

Siamese crocodile model.

Family Zoo Siamese crocodile model.

Visit Everything Dinosaur’s award-winning website for models and replicas of extinct and extant archosaurs.

Visit: Everything Dinosaur’s User-friendly Website.

Hundreds of Crocodile Farms

There are something like 800 commercial crocodile farms in the country, the sale of crocodile skin, meat and crocodile related products can help to earn Thailand valuable export dollars to help support the economy.  For the proposal to be passed, a two-thirds majority of CITES members needs to be obtained.  However, concerns have been raised about the proposal, for example, there are very few wild crocodiles left in the country and any lifting of trade embargoes could lead to the highly vulnerable wild crocodile population being exploited, ultimately leading to their extinction.

Note

In a series of votes taken on Friday (8th March) the proposal put forward by the Fisheries Department was defeated.  Both the Saltwater and Siamese crocodiles will retain their Appendix I status.

16 02, 2013

“Lolong” Largest Saltwater Crocodile in Captivity is Dead

By |2023-02-12T09:47:28+00:00February 16th, 2013|Categories: Animal News Stories|0 Comments

Locals Mourn the Death of their Giant Crocodile

A huge crocodile known as “Lolong” has died at the Philippine eco-tourism park he inhabited just eighteen months after being captured.  The Saltwater crocodile was officially declared the largest crocodile in captivity in 2011. It was measured at 6.17 metres long and it weighed more than one thousand kilogrammes, this reptile resembled a prehistoric monster, not out of place in a dinosaur movie.  The crocodile had become a significant tourist attraction and as the local mayor of the town of Bunawan, where the park was located,said:  “Lolong helped put our town on the world map”.

Saltwater Crocodile

Believed responsible for the deaths of a number of local fisherman, an extensive crocodile hunt was instigated to bring this man-eater into captivity.  The marshes of the Agusan del Sur province of the Philippines were searched and eventually this monster crocodile was caught in a trap, tempted by the carcase of a pig used as bait.  When the crocodile was captured, pictures of the huge reptile tied to a cart and surrounded by excited villagers quickly spread around the world, this part of the Philippines had found fame and fortune thanks to this apex predator.

To read an article about this reptile’s capture: Monster Crocodile Caught in the Philippines.

The crocodile, which is thought to have been at least fifty years of age, fell ill after swallowing a piece of nylon cord about three weeks ago and it had been suffering from intestinal problems but the actual cause of death has yet to be determined.  An autopsy is being carried out and the results will be published next week.  The weather had been unseasonably cold and it is thought that the crocodile could have been affected by the chilly conditions.  Whatever, the cause of death, the crocodile will leave much of the town in mourning as it had been a big tourist attraction bringing lots of visitors to Bunawan.

Monster Crocodile

The crocodile was discovered last Monday, floating upside down in its enclosure with a very bloated stomach.  A veterinarian who specialises in reptiles was called in and the crocodile was immersed in a pool of tepid water in a bid to revive it but to no avail.  Sadly, this crocodile had passed away within eighteen months of its capture.

Mayor of Bunawan, Edwin Elorde commented:

We don’t know what happened to it.  Its death is a complete mystery at the moment and I have to admit that I am really depressed.  I have come to love that crocodile, it brought fame and fortune to our town.”

A number of other Saltwater crocodiles have already been offered to the specially created eco-tourism park that was set up to house “Lolong”, however, lurking in the marshes surrounding the town there are rumoured to be even larger crocodiles still on the loose.  The eco-system in the marshland is particularly rich, providing a refuge for a number of endangered species in the Philippines as well as some very large Saltwater crocodiles.

Although not closely related to dinosaurs, the residents of the town of Bunawan came to appreciate the fact that they had their very own prehistoric monster which was in itself a significant tourist attraction.

For models and replicas of extant and extinct archosaurs: Mojo Fun Prehistoric and Extinct Models.

A pig was slaughtered in honour of the deceased reptile and offerings were made by locals to the spirit of “Lolong”.  The crocodile has had its head removed and been skinned.  The rest of the carcase was buried so that the flesh could rot quickly away allowing the bones to be exhumed at a later date and an exhibit created.  It is hoped that even in death this very large crocodile would act as symbol of the rich natural environment and help to preserve the habitat as well as encouraging eco-tourists into the province.

To read an article about the largest crocodiles in captivity: Philippine Crocodile is Declared Largest in Captivity.

11 02, 2013

Chinese New Year – The Year of the Snake

By |2023-02-12T09:28:09+00:00February 11th, 2013|Categories: Animal News Stories|0 Comments

The Year of the Snake

So we enter the year of the Snake according to the Chinese lunisolar calendar.  Of the twelve animals that make up the Chinese zodiac, two are reptiles, there is the Chinese dragon, the fossilised bones of long extinct dinosaurs, no doubt being identified by Chinese sages as proof of the dragon’s existence.  The second reptile of the zodiac is the snake and 2013 is the year of the snake according to the traditional Chinese calendar.

Year of the Snake

With the Institute of Vertebrate Palaeontology and Palaeoanthropology (Beijing, China) having the world’s largest collection of vertebrate fossils, it seems fitting to consider the snake, or most certainly the Order Squamata (lizards and snakes) from a palaeontology perspective at the start of the Chinese year of the snake.

Snakes are not closely related to dinosaurs, but they did evolve in the Mesozoic just like the Dinosauria.  Today, snakes and lizards are the most abundant and diverse of all the reptiles. The Squamata  represent the scaled reptiles, the bodies of these animals are covered in horny, shield-like scales.  The Order Squamata is divided into a number of Suborders, snakes are within the Suborder Serpentes.  The paucity of the known fossil record makes pinpointing the approximate evolution of the first members of the Squamata very difficult.

Fossils are known from the Middle Jurassic and as snakes evolved from lizards, the first fossils of lizard-like reptiles pre-date those of the true snakes (Serpentes).  Evidence relating to assessments of the molecular clocks of Squamata suggests that this Order may have had its origins in the Permian geological period.  However, since there has only been a handful of early snakes and ancestral snake fossils found to date, palaeontologists remain uncertain as to the phylogenetic relationship between snakes and other elements of the Squamata.

The Earliest Snakes

The earliest snakes were probably non-venomous constrictors, these probably evolved during the Late Cretaceous and with the demise of the dinosaurs at the end of this geological period, those groups of snakes that survived the mass extinction event rapidly diversified and became apex predators in a number of eco-systems.  For example, beautifully preserved snake fossils from the Messel shales (near to Frankfurt, Germany), dating from the early Tertiary show that a number of snake species hunted in the tropical forests of this part of the world.  Palaeopython was one of the largest species with some specimens measuring up to two metres in length.

Titanoboa

The largest snake known from the fossil record is Titanoboa (T. cerrejonensis).  Fossils found in a Columbian coal mine and described in 2009 indicate a giant constrictor which may have measured more than fifteen metres in length and it would have had a body as thick as an oil drum.

To read an article on the discovery of Titanoboa: Titanoboa – Giant Snake of the Palaeocene.

Rebor Titanoboa Museum Class Maquette Brian Diccus.

The Rebor Titanoboa Museum Class Maquette Brian Diccus.

There have been a number of Cenozoic snake fossils found in China.  People born in the year of the snake in traditional Chinese culture are supposed to take on some characteristics of these reptiles.  Custom states that these people are not outwardly emotional and tend to value their privacy.  They are cunning, meticulous but not good communicators.  However, people born in the year of the snake are believed to be dedicated, goal orientated and good at working alone.  Some almanacs state that people born in the year of the snake make good scientists, even palaeontologists.

Rebor have introduced a museum class maquette of a Titanoboa swallowing prey. To view this stunning figure and the rest of the models in the Rebor range: Rebor Models and Figures.

Happy Chinese New Year.

25 01, 2013

Crocodile Dumped Outside Pet Shop Finds Love and Happiness

By |2023-02-12T06:30:52+00:00January 25th, 2013|Categories: Animal News Stories|0 Comments

Caiman Happy In Her New Home

A South American Caiman abandoned outside a pet shop in Wolverhampton back in December 2011 has fully recovered from her ordeal, found a new home and even found love in her crocodile enclosure.  Nick-named “Snappy” when discovered left outside in a plastic box by pet shop owner Jim Wick, the crocodile has been renamed Edith by keepers at Cleethorpes Jungle Zoo who took her in when they heard of her plight.

Crocodile Dumped

Unfortunately, there remains a sizeable trade in illegal, exotic pets such as crocodiles.  These dangerous reptiles do not make good pets, they require very specialised care and even a small crocodile such as Edith would be capable of inflicting serious injury should she get close enough to bite someone.  With the economic downturn, Jim, the owner of a specialist pet shop called Wickid Pets had taken in a number of exotic pets as their former owners no longer wanted to or could afford to look after their charges.

To read the article on the abandoned crocodile: Crocodile Dumped Outside Pet Shop.

Craig Gledhill, the manager at the zoo where Edith now lives is very happy with her progress.  He stated that although she had a bossy and fiesty side to her character she has settled down well and is a popular attraction.  The one-metre-long crocodilian has even found a mate , a male called Colin who shares her enclosure.

It is very pleasing to hear that what was a very sad story when we first reported on this crocodile’s plight has had a happy ending, but we must stress that the keeping of exotic pets is not to be taken on lightly.

For models and replicas of extant and extinct archosaurs, visit Everything Dinosaur’s award-winning website: Everything Dinosaur.

26 12, 2012

The Strongest Bite of All – not T. rex but Piranhas According to New Research

By |2024-04-24T20:05:56+01:00December 26th, 2012|Categories: Animal News Stories, Dinosaur and Prehistoric Animal News Stories|0 Comments

Black Piranha and Extinct Relative Had Strongest Bites of All

The debate about which of all the predators known to science was the most ferocious is a subject area often visited by nature documentary programme makers.  We seem to be obsessed with dangerous animals whether it is the extinct Tyrannosaurus rex of the Jurassic Park movies or indeed the Great White Shark (Carcharodon carcharias).  However, one when it comes to which animal had the strongest bite there is one small fish found throughout the Amazon basin that could give these two film icons a run for their money.  As a proportion of its body size, the extant Black Piranha is believed to have one of the strongest bites of any animal. So fish of the genus Serrasalmus can lay claim to the title of having the most powerful bite pound for pound of their body weight.

Bite Forces

Piranha have been depicted in a number of movies, not as many as the dinosaurs, but just like those extinct reptiles, the piranhas reputation has been enhanced by its cinematic ability to strip flesh from people in a matter of seconds.  Black piranhas in the wild can be aggressive but they rarely attack humans.  They can grow up to about forty centimetres in length and they are an important predator of other fish species in the river channels and tributaries of the Amazon basin.

A Skeleton of the Extant Black Piranha with the Fossilised Teeth of M. paranensis (inset)

Fearsome predators with a strong bite.

Picture credit: Grubich JR et al/Grey Taxidermy/Karen Carr

Studying Piranhas and Other Vertebrates

A team of researchers from George Washington University (Washington, District of Columbia, United States) visited the Amazon to study piranhas and other fish vertebrates, the bite force of the Black Piranha (Serrasalmus rhombeus) was calculated to be approximately 320 Newtons.  These fish feed by darting in and snatching bite-sized mouthfuls from other fish, attacking the bony fins and softer parts of the victim.  The data calculated by measuring the bite force was then used to assess the potential chomping power of a much larger, extinct species of piranha, fossils of which were found in Argentina.

The extinct piranha, known as Megapiranha paranensis is known from just one fragmentary fossil, part of the premaxilla (upper jaw).  M. paranensis was a freshwater predator that inhabited Argentinian river systems during the Late Miocene Epoch (approximately 8 million years ago).  Reaching lengths in excess of one metre, this ancestor of today’s Serralsalmus genus most likely had a scaled-up bite force.  The extinct super-predator shared its world with enormous crocodiles and turtles, being quite large with a very strong bite was an important adaptation for survival.

The Bite Force of T. rex

To read an article on the potential bite force of Tyrannosaurus rexNew Research into T. rex Bite Force.

When body size is taken into account, the scientists working in conjunction colleagues from the Museum of La Plata (Argentina) and the Columbian College of Arts and Sciences, calculated that the bite forces generated by the Black Piranha and the extinct Megapiranha would have been bigger than those forces generated by Tyrannosaurus rex as well as the extinct Megalodon giant shark (Carcharodon megalodon).  Palaeontologists have used studies of extinct animal’s  jaws and teeth to try and calculate the bite forces that these creatures could generate.  It seems that a fish often kept by aquarium enthusiasts could have had the most devastating bite of all.

The bite force of M. paranensis was calculated by creating a bronze-alloy model of the jaw and using a computer programme to assess the power of the bite force generated when biting into vertebrate bone, turtle carapace or into the scales of catfish, organisms that this extinct fish could have attacked.  The strength of the fish bite was due to a combination of factors according to the scientists, the shape and size of the teeth, the amount of muscle associated with the jaws and the ability of the jawbones to conduct huge forces through them as a result of their anatomical configuration.  It seems even the jaws of the most formidable predator of the Late Cretaceous – Tyrannosaurus rex may not have been a match for these freshwater predators.

The Fossilised Premaxilla of Megapiranha paranensis

Strong bite from the Late Miocene.

Picture credit: Mark Sabaj-Perez

The teeth of the extinct piranha are serrated and they remind team members at Everything Dinosaur of teeth from extant sharks such as the Tiger shark (Galeocerdo cuvier).

The research team went onto compare the bite forces generated against a series of other fishy predators, not only the colossal  Megalodon but also the Devonian giant placoderm Dunkleosteus.  Pound for pound the piranha species came out on top.

A Bite Force Comparison between Extinct and Extant Species of Fish

Piranhas come out on top.

Despite the number of cameo roles piranhas have played in films, where they have been seen to strip their victim of flesh in a matter of seconds, the research team claim that this is the first time that the actual bite force of piranha has been studied in this way.

For models and replicas of ancient fish such as Otodus megalodon, Cretoxyrhina and Dunkleosteus: PNSO Prehistoric Animal Figures.

14 12, 2012

A Saltwater Crocodile Cull May not Solve Northern Territories “Crocodile Problem” According to New Report

By |2024-04-24T20:19:21+01:00December 14th, 2012|Categories: Animal News Stories|0 Comments

Culling Estuarine Crocodiles may Not Reduce Crocodile Attacks

Calls for a cull of the Saltwater crocodile population in the Northern Territories (Australia) are growing after two fatal attacks on children within the last month.  Such a cull could prove to be counter productive and ironically, lead to an increase in crocodile attacks on people.  Biologists are aware that large crocodiles set up territories and are very aggressive towards others of their own species, a cull of big Saltwater crocodiles could result in one of the natural controls of species numbers in the wild, predation by other crocodiles, being removed.  This in turn, could lead to a population increase as more of the reptiles reach breeding age, thus increasing the likelihood of crocodile attacks.

Saltwater Crocodile

Two children were killed in separate incidents over the last four weeks.  In the first, a seven year old girl was eaten by a Saltwater crocodile at Gumarrirnbang outstation.  In the second attack, which took place at Port Bradshaw in East Arnham Land, a nine year old boy was grabbed and dragged under the water.  The crocodile was attacked by spear fishermen, but they could not force the crocodile to let go of the child and the four-metre specimen disappeared into deeper water taking its victim with it.  It is believed that some locals had been in the habit of feeding a large crocodile, behaviour that police authorities condemned.  Such instances are indeed a tragedy and there have been a number of vociferous calls for a cull of these large predators.

Fatal attacks remain rare in Australia, Saltwater crocodiles are responsible for a virtually all of the attacks, although it is a mistake to think that the smaller Australian crocodile (Crocodylus johnsoni) is not aggressive, this species has been known to attack swimmers too, especially in the crocodile’s breeding season when the males in particular are extremely aggressive.

Superb Ambush Predators

Crocodiles are superb ambush predators, a five metre long Saltwater crocodile can remain underwater for more than forty minutes.  It can detect movement in the water around it and it feeds by grabbing animals that come down to the water to drink.  The jaws are extremely powerful and can “snap” down onto potential prey with many times the bite force of a mammal apex predator such as a lion.  Once caught in the jaws, the crocodile’s instinct is to drag the victim underwater where they will drown.

In many cases, crocodiles do not eat their victims straight away but store the unfortunate prey underwater.   Such behaviour may lead to a crocodile making several attacks, even when it has enough food to sustain it for a considerable time already stored away in its various larders.

As Estuarine crocodiles (the other name for “Salties”) have been protected in Australia for nearly fifty years, their numbers once decimated by over hunting, have recovered rapidly.  Crocodiles are now encroaching into areas of human population, animals are frequently caught by rangers and removed from areas such as Darwin harbour as a precaution to prevent the threat of crocodile attacks.  Netting and traps are also employed but large crocodiles can learn to avoid such hazards and unlike sharks, they can always get out of the water and walk on land to find a suitable river, creek or billabong to inhabit.

Marine Crocodiles?

Saltwater crocodiles are not just restricted to inland areas, as their name suggests they are very comfortable in the sea and they are quite happy to swim long distances.  This ability to survive a long time at sea, not only helps them to “hop” around the coast from bay to bay but it has permitted the Saltwater crocodile to thrive over a huge area of eastern hemisphere.  This species of crocodile has the largest territory of any crocodile, from Sri Lanka, through to the Philippines as well as the northern coast of Australia.

Lobbying for the Return of Hunting

Lobbyists who are pro-hunting point out that trophy hunters would pay top dollar for a chance to bag one of the largest predators on Earth, certainly the largest reptile on the planet, a creature that would not look out of place amongst the dinosaurs.  After all, the crocodilians have been around for a very long time, and the ancestors of today’s alligators, caimans, gharials and true crocodiles did indeed live alongside the dinosaurs.

The Differences Between a Crocodile and an Alligator

Crocodile and Alligator comparison.

Crocodile (top) and Alligator (bottom).

The crocodiles themselves are tourist attractions with a number of companies operating river cruises where brave tourists can get up close and even feed one of the most dangerous animals to be found anywhere in the world today.

With news of fatal crocodile attacks and more frequent incidents when crocodiles encroach onto areas of population, it can be argued that Australia receives adverse publicity.  However, the tourist industry, a vital source of revenue for the Northern Territories remains vibrant with a large number of visitors attracted to this part of the country, specifically because of the chance to see crocodiles and other exotic wildlife.

To read an article from the autumn of 2012 about protestors beheading a crocodile: Crocodile is Beheaded.

A cull of crocodiles could result in an increase in crocodile attacks.  Crocodiles are capable of cannibalism and large crocs do attack and eat smaller members of their own species.  If a number of top predators are shot, then a natural check on the population of smaller crocodiles would be removed.  This could result in more crocodiles growing up and therefore an increase in total crocodile numbers.

A Caiman Cull in Venezuela

The Venezuelan Government introduced a cull to reduce the number of large, male caimans in their country’s river system.  A cull was carried out on large males in some populations, whilst other populations were left alone.

When scientists compared the numbers of caiman from the culled areas and the populations where no controls had been put in place, they discovered that the overall numbers and biomass of these reptiles had actually increased where the cull had taken place.  After the large bull caimans were removed from the ecosystem, sub-adult males grew more rapidly and reached maturity quicker and in greater numbers.  These animals subsequently bred leading to a net increase in the population.  In areas where no cull had occurred the caiman population remained static.

It seems a cull, even a relatively minor one where trophy hunters could kill up to fifty individuals a year may not be the answer.  Already in place are a number of education programmes advising locals and tourists of the danger of crocodile attacks and what steps can be taken to reduce the threat of a potential crocodile encounter.  Since these apex predators of Australia received protection back in 1971, their numbers have risen from an estimated less than 4,000 individuals left after widespread hunting, to something like 90,000 crocodiles today.

The debate over how best we can live alongside these dangerous animals is set to continue.  More attacks will occur and there will be fatalities.  It seems that there is no easy answer as to how humans and “Salties” can share the same environment.

Everything Dinosaur stocks a wide range of prehistoric animal models and figures including ancient crocodilians and other archosaurs: Prehistoric Animal Figures and Models.

27 11, 2012

Woolly Mammoth Blood Goes on Display in Canadian Museum

By |2023-02-08T16:51:51+00:00November 27th, 2012|Categories: Animal News Stories, Dinosaur and Prehistoric Animal Drawings|0 Comments

Blood from a Woolly Mammoth on Exhibit for the Very First Time

A small vial of deep red mammoth haemoglobin along with a portion of mammoth tusk recovered from Grunthal, Manitoba (Canada), are the latest additions to the Canadian Fossil Discovery Centre and its first Ice Age exhibit allowing people an unprecedented opportunity to get up close and personal to an ancient creature which became extinct approximately 10,000 years ago.  With the possibility of geneticists being able to clone a Woolly Mammoth becoming closer, visitors to the museum have the opportunity to view some of the material, the like of which may play a role in the bringing back to life of an extinct species.

Woolly Mammoth Haemoglobin

The exhibit was made possible thanks to a donation of the haemoglobin from Winnipeg’s Kevin Campbell, a University of Manitoba professor of environmental and evolutionary physiology and vice-president of the board for the museum.

An Opportunity to Get Close to Woolly Mammoths

Sample of Mammoth haemoglobin on display at Canadian museum.

Picture credit: Everything Dinosaur

Campbell, whose research was instrumental in the resurrection of the haemoglobin, explained how recent advances in biotechnology enabled him to not only re-create functional genes from extinct animals, but also to faithfully assemble and study the proteins the genes once encoded. By doing so they were able to determine some remarkable ‘living’ characteristics of Woolly Mammoths.

For models of prehistoric elephants and other extinct creatures: Prehistoric Elephants and Prehistoric Animal Figures (Eofauna Models).

Professor Campbell explained:

“For instance, resurrecting this red blood cell protein haemoglobin from a Woolly Mammoth has shown that the normally temperature sensitive protein evolved novel adaptations that, unlike living (tropical) elephants, enabled it to do its job of delivering oxygen to body tissues in the cold conditions these beasts faced.”

He went onto add:

“Prior to these new techniques we had no way to deduce, let alone test for, these kinds of attributes from fossilised remains.  Being able to re-create and study authentic genetic material from extinct species is a whole new frontier in palaeo-biology and research into ancient life.”

The last time of species, H. sapiens got this close to a Woolly Mammoth (Mammuthus primigenius) was something like 10,000 years ago.  The Canadian Fossil Discovery Centre’s acting executive director, Peter Cantelon exclaimed:

“We are thrilled to be able to be at the forefront of palaeo-biology with this one-of-a-kind display.  If you were to go back in time with a syringe, remove Mammoth blood and separate out the haemoglobin, this is exactly what you would have.”

Cloning Extinct Species

The cloning of extinct species such as the Quagga, the Woolly Rhino and of course the Woolly Mammoth is now a possibility thanks to developments in the extraction, storage and study of ancient DNA (deoxyribonucleic acid).  However, this aspect of science is extremely controversial.  There seems to be an almost daily stream of reports related to the study of  “Ancient DNA”, for example, team members at Everything Dinosaur recently had their attention drawn to a scientific paper (yet to be peer reviewed) that discussed the DNA evidence for the existence of “Big Foot” and where it might fit on the hominin family tree.

To read an article on the possibility of bringing extinct animals back: Resurrecting Prehistoric Animals.

When working with Year 6 pupils yesterday, at a school in the Lake District (North-west England), the moral implications for bringing back a long dead animal such as a Woolly Mammoth was discussed.

Does because we can, does this mean we should?

3 10, 2012

Giant Salamanders Terrestrial Hunters of the Palaeogene

By |2023-02-06T08:02:13+00:00October 3rd, 2012|Categories: Animal News Stories, Dinosaur and Prehistoric Animal News Stories|0 Comments

Research Shows that Giant Salamanders Were Once Land Dwelling Hunters

There are several species of giant Salamander living today, the largest Megalobatrachus japonicus grows up to 1.5 metres in length.  Like all giant Salamanders this species prefers fast running, well-oxygenated streams and they are all very much aquatic creatures.  However, a team of scientists studying ancestral giant Salamander fossils found in the Gobi desert; suggest that during the Palaeogene, these amphibians were very much at home on the land.  Not only were these giant Salamanders terrestrial, but studies of the skull fossils and teeth indicate that these animals probably hunted on land too.

Giant Salamanders

Giant Salamanders are found today in Asia, with one species known from the United States.  The heads and bodies of these creatures are flattened, the tail is laterally flattened and the paired limbs are relatively small and weak when compared to the rest of the body.  Modern giant Salamanders lack eyelids and the larval teeth are retained into adulthood.  In fact these amphibians only undergo a partial metamorphosis from the larval stage and retain larval characteristics as mature animals (a form of neoteny – when traits of juveniles are seen in adults).

Scientists studying the fossilised remains of the oldest known member of the Giant Salamander group (Cryptobranchidae), fossils found in Mongolia and dated to around fifty-five million years ago, have proposed that these animals were adapted to a life on land.

Four specimens of the Palaeogene species Aviturus exsecratus located at the Moscow Palaeontological Institute reveal that these amphibians had robust limbs, strong backbones and powerful jaws that suggest adaptations to a terrestrial environment.

Vertebrate palaeontologist Davit Vasilyan of the University of Tübingen (Germany) who helped write the scientific paper on this study states that Aviturus exsecratus had the strongest head muscles of any giant Salamander, suggesting it went on land to hunt.  Supporting this idea is the fact that fossil remains of this salamander were found in rock typically formed from water’s-edge sediments.  Unlike their modern descendants, these early Cenozoic amphibians went through extra stages of metamorphosis and lost some of the juvenile traits that are retained in adults today.  The teeth for example, were much more developed than the teeth found in the large, wide mouths of their modern counterparts.

The evolution of terrestrial giant Salamanders coincides with a period of dramatic global warming (Palaeocene-Eocene Thermal Maximum), a time when much of the Earth became covered in tropical rain-forest and global temperatures rose to an average of around 26 degrees Celsius (compared to an average today of just 14 degrees Celsius).

Dr Vasilyan proposes that giant Salamanders first appeared as land based carnivores during this warm era, perhaps exploiting niches in the ecosystems that had yet to be properly filled after the mass extinction event that ended the Mesozoic some ten million years earlier.  When global temperatures began to drop, these amphibians abandoned their more complete adult forms adapting to an entirely aquatic existence which still persists today.

Giant Salamanders Once Hunted on Land

Terrestrial predators.

Picture credit: Davit Vasilyan

It seems that these rare, aquatic creatures that we know today, were once powerful, land-based hunters.

For models and replicas of prehistoric creatures: Models of Prehistoric Creatures (CollectA Age of Dinosaurs Popular).

25 09, 2012

Saltwater Crocodile Beheaded in Protest by Queenslanders

By |2023-03-06T15:09:46+00:00September 25th, 2012|Categories: Animal News Stories|0 Comments

Locals Take Action to Cull Crocodiles as Fears over Attacks Increases

Queensland environmental officers have discovered the torso of a Saltwater crocodile at a popular North Queensland beach and believe the animal was caught and beheaded by local residents protesting about the Governments failure to act to control crocodile numbers.  A local member of Parliament has commented that this beheading is a sign that Queenslanders have lost patience with the State and the National Government’s plans to manage the growing population of Saltwater crocodiles.

Saltwater Crocodile

The body of the eight foot long reptile was discovered just yards from where a border collie dog, a pet of a local fisherman, was snatched and dragged into the water by a large predator a few days earlier.   Andrew Powell (Environment Minister), said in a statement that it appeared that the crocodile had been caught on a baited, stainless steel hook, this was found embedded in the animals torso.

Rangers discovered the body at Kewarra Beach, north of Cairns, a popular location with tourists and fishermen.  The officers had been at the beach, setting traps in a bid to catch the crocodile that killed the dog, tests are being carried out to see if the beheaded crocodile was responsible for the attack.

Dealing with Resident’s Concerns

Although State officials are very aware of the concerns of residents, local people have been reminded that crocodiles remain a protected species and people illegally killing these reptiles can face fines of up to $24,000 AUD if caught and prosecuted.

In a bid to reassure residents, Mr Powell stated that the State Government was committed to a new crocodile management plan that would hopefully reduce the risk of attacks on people.  The plan entails putting in place a number of security measures to prevent large crocodiles entering areas used for swimming or for other water activities.  Crocodiles showing aggressive, unprovoked behaviour towards people are automatically removed to more remote wildlife habitats and there is a programme in place to routinely capture and remove any crocodile seen basking on ramps or marinas.

To see models of prehistoric animals including extinct archosaurs: Safari Ltd Dinosaur Models.

When asked to comment on this specific incident of the beheaded crocodile, Mr Powell said:

“We will take action to address this issue … but it is not safe or appropriate for anyone to take part in this sort of behaviour.”

Local Residents are Angry

Other politicians have commented that local residents are angry at what is seen to be a lack of action from State officials, the slaying of the crocodile is believed to be a sign that local people have lost faith in the authorities and are prepared to take matters into their own hands.

Although hunted to near extinction in the early part of the 20th century, Saltwater crocodile numbers in Queensland have been steadily increasing since 1970.  These crocodiles are man-eaters and even a relatively small specimen at a little over a metre in length is capable of inflicting severe injuries to a person should the crocodile be given the opportunity to grab them.

State officials are confident that the existing measures being implemented should be enough to reduce the risk of attacks, but local residents have been urged to take note of the numerous crocodile warning signs that are being placed alongside beaches, rivers and other stretches of water where large crocodiles have been spotted previously.

Go to Top