Mongolia is a country that takes keen interest in preserving diverse fossils of the world and that is why it is one of the most favoured targets of black market smuggles who steal and smuggle the fossils. But recent international recovery efforts, have helped Mongolia recover a rare dinosaur skeleton and a trove of fossils illegally exported nearly 20 years ago, authorities said.&nbsp;The recovery includes a Tarbosaurus bataar skeleton that is estimated to be be over 50 per cent intact, along with 28 groups of fossilised dinosaur remains originally found in Mongolia’s Gobi Desert, according to police. This also includes a half-complete, extremely rare relative of Tyrannosaurus rex.&nbsp;According to D Munkhkhuyag, head of the police public relations department, smugglers “with the aim of making a profit”, had smuggled the bones out of the country in 2006.<h2>France discovered first specimens</h2>&nbsp;It was in 2013 that French customs officials discovered some of the first specimens. For more than two years France and Mongolia worked together under international illicit cultural heritage trafficking laws to repatriate the fossils.&nbsp;In December 2025, France held a formal handover ceremony in Paris where representatives from both countries were present.&nbsp;Museum paleontologists in Mongolia will clean the fossils before it is put on display for the public after its recovery.&nbsp;Some of the recovered fossil fragments are that of theropods, ornithomimosaurs, and hadrosaurs that roamed the Gobi Desert about 65 to 70 million years ago during the Late Cretaceous.&nbsp;Although arid and cold today, the Gobi Desert was once a humid and diverse floodplain with dense forest and river channels. &nbsp;

For more than two years France and Mongolia worked together under international illicit cultural heritage trafficking laws to repatriate the fossils.

Mongolia is a country that takes keen interest in preserving diverse fossils of the world and that is why it is one of the most favoured targets of black market smuggles who steal and smuggle the fossils. But recent international recovery efforts, have helped Mongolia recover a rare dinosaur skeleton and a trove of fossils illegally exported nearly 20 years ago, authorities said. The recovery includes a Tarbosaurus bataar skeleton that is estimated to be be over 50 per cent intact, along with 28 groups of fossilised dinosaur remains originally found in Mongolia’s Gobi Desert, according to police. This also includes a half-complete, extremely rare relative of Tyrannosaurus rex. According to D Munkhkhuyag, head of the police public relations department, smugglers “with the aim of making a profit”, had smuggled the bones out of the country in 2006. France discovered first specimens It was in 2013 that French customs officials discovered some of the first specimens. For more than two years France and Mongolia worked together under international illicit cultural heritage trafficking laws to repatriate the fossils. In December 2025, France held a formal handover ceremony in Paris where representatives from both countries were present. Museum paleontologists in Mongolia will clean the fossils before it is put on display for the public after its recovery. Some of the recovered fossil fragments are that of theropods, ornithomimosaurs, and hadrosaurs that roamed the Gobi Desert about 65 to 70 million years ago during the Late Cretaceous. Although arid and cold today, the Gobi Desert was once a humid and diverse floodplain with dense forest and river channels.

For more than two years France and Mongolia worked together under international illicit cultural heritage trafficking laws to repatriate the fossils.

Rare dinosaur fossils of theropods, ornithischian return to Mongolia after 20 years

A 233-million-year-old dinosaur fossil has been discovered in Brazil and is being dubbed as the oldest fossil of the gigantic creatures in the world. Paleontologists say that the carnivorous dinosaur belongs to the Herrerasauridae family and walked on Earth during the Triassic Period. During this time, all continents were one, also known as Pangea. The Triassic spanned 50.5 million years and followed the Permian extinction, also known as The Great Dying. This is when the dinosaurs started to emerge on Earth. However, the end-Triassic marked&nbsp;another extinction event which wiped off 76 per cent of all marine and terrestrial species.

The dinosaur fossil is of a carnivorous species which walked the Earth when there was just one big supercontinent. This was around 233 million years ago, making it the oldest dinosaur to have roamed our planet, as per official records. It was a bi-pedal, eight-foot-long animal and perished in southern Brazil in what is today known as “Rio Grande do Sul".&nbsp;

Scientists are excited by this discovery since it is expected to help them understand the origins of dinosaurs. “It’s among the oldest in the world,” Rodrigo Müller of the Federal University of Santa Maria&nbsp;(UFSM) told Agência Brasil. “It’s already important because of the role it’s likely to play in helping us understand the origin of the dinosaurs. Besides, it’s almost fully preserved. The material will provide a lot of anatomical information.”

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As per data, the oldest dinosaurs lived 231 million years ago and the fossils include a collection of different species. However, there are some fossils that date back as far as 240 million years, but these haven't been accepted as officially confirmed records till now.&nbsp;

<h2>Heavy rains threaten dinosaur fossils</h2>

Meanwhile, scientists are slowly losing out on some fossils in the area as this region in Brazil is known for receiving heavy rains. In fact, heavy deluge is what uncovered the fossils in the first place. Müller told the Associated Press that “a leg bone and a pelvis bone in the pelvic region…were already being destroyed due to the rain.” &nbsp;As per reports, three months of rain fell in just two weeks this June, wreaking havoc in the form of floods that killed at least 182 people.&nbsp;

The scientists are now trying to salvage whatever they can of the Herrerasaurid fossil before they are destroyed by the rains.

A 233-million-year-old dinosaur fossil has been discovered in Brazil and is being dubbed as the oldest fossil of the gigantic creatures in the world. Paleontologists say that the carnivorous dinosaur belongs to the Herrerasauridae family and walked on Earth during the Triassic Period.

A 233-million-year-old dinosaur fossil has been discovered in Brazil and is being dubbed as the oldest fossil of the gigantic creatures in the world. Paleontologists say that the carnivorous dinosaur belongs to the Herrerasauridae family and walked on Earth during the Triassic Period. During this time, all continents were one, also known as Pangea. The Triassic spanned 50.5 million years and followed the Permian extinction, also known as The Great Dying. This is when the dinosaurs started to emerge on Earth. However, the end-Triassic marked another extinction event which wiped off 76 per cent of all marine and terrestrial species. The dinosaur fossil is of a carnivorous species which walked the Earth when there was just one big supercontinent. This was around 233 million years ago, making it the oldest dinosaur to have roamed our planet, as per official records. It was a bi-pedal, eight-foot-long animal and perished in southern Brazil in what is today known as “Rio Grande do Sul". Scientists are excited by this discovery since it is expected to help them understand the origins of dinosaurs. “It’s among the oldest in the world,” Rodrigo Müller of the Federal University of Santa Maria (UFSM) told Agência Brasil. “It’s already important because of the role it’s likely to play in helping us understand the origin of the dinosaurs. Besides, it’s almost fully preserved. The material will provide a lot of anatomical information.” Also Read: An apocalypse can occur anytime after 2050. Here's how it will begin and end the world As per data, the oldest dinosaurs lived 231 million years ago and the fossils include a collection of different species. However, there are some fossils that date back as far as 240 million years, but these haven't been accepted as officially confirmed records till now. Heavy rains threaten dinosaur fossils Meanwhile, scientists are slowly losing out on some fossils in the area as this region in Brazil is known for receiving heavy rains. In fact, heavy deluge is what uncovered the fossils in the first place. Müller told the Associated Press that “a leg bone and a pelvis bone in the pelvic region…were already being destroyed due to the rain.” As per reports, three months of rain fell in just two weeks this June, wreaking havoc in the form of floods that killed at least 182 people. The scientists are now trying to salvage whatever they can of the Herrerasaurid fossil before they are destroyed by the rains.

This dinosaur walked on Earth when just one big supercontinent existed

It has long been debated that birds were once dinosaurs with feathers, or, in other words, birds evolved from their giant ancestors- the feathered dinosaurs.&nbsp;

In a recent fossil study, palaeontologists termed&nbsp;Yutyrannus hauli as the largest feathered dinosaur. The fossil is around nine&nbsp;metres long and weighs close to 1,400 kilogrammes with partial or complete feathers (which is still up for debate). This might be the largest feathered dinosaurs, but the modern birds have closer resemblance to a theropod group called- Tyrannoraptors. This group includes everybody’s favourite bipedal predator, the Tyrannosaurs rex. or T. rex.&nbsp;

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The T. rex fossils are believed to have had patches of skin with few feathers on them, much like with a scaly reptile-like skin that is more commonly associated with softer bird-like&nbsp; feathers.

But recent evidence show that Yutyrannus hali is the biggest dinosaur discovered till date with feather. Yutyrannus hali,&nbsp;literally meaning “beautiful feathered tyrant”, was discovered in 2012 after a fossil was purchased from a dealer.&nbsp;

<h2>The “beautiful feathered tyrant” was big and fuzzy and lived 125 million years ago</h2>

Whether Yutyrannus huali was partially or completely feathered is contentious, but we do know that it had proto feathers that differ from modern feathers.&nbsp;

Proto feathers have long filaments (around 20 centimeters, according to the Australian Museum) that lacked the barbs, barbules, and hooks we see in modern feathers, but are thought to have formed a shaggy coat that would’ve enabled Yutyrannus to keep warm in cold climates.

When it comes to comparing proto and modern feathers of Yutyrannus and T. rex, researchers believe that Yutyrannus lived around 125 million years ago during the early Cretaceous period, and by the time T. rex arrived, the feathers saw an evolution. &nbsp;

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It is estimated that baby T. rex would’ve been the size of a terrier, and it too may have sported a coat of fuzzy proto feathers. Then, as it reached its teenage growth spurt years (when they triple in size in less time), the feathers may have reduced to small patches that could've been useful in mating rituals.

One reason to doubt whether adult T. rex were covered in feathers&nbsp;comes down to their physiology. As T. rex grew, its volume increased significantly more than its surface area (skin). In other words, metabolically speaking, it wouldn’t have made sense to be covered in feathers as it would’ve been too hot.&nbsp;

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T. rex’s issue wasn’t getting cold but quite the opposite. When it was a baby and it had high surface area to body volume ratio that would have benefited from the warmth of feathery jacket. That is likely why feathers evolved in the first place, as a form of thermoregulation for small animals with big surface areas that made it hard for them to retain the heat made by their bodies.&nbsp;

This approach likely didn’t suit the giant T.rex, however, and so the feathers were lost in some groups but retained by others, including the dinosaurs we share this planet with today.

(With inputs from agencies)

It has long been debated that birds were once dinosaurs with feathers, or, in other words, birds evolved from their giant ancestors- the feathered dinosaurs. In a recent fossil study, palaeontologists termed Yutyrannus hauli as the largest feathered dinosaur.

It has long been debated that birds were once dinosaurs with feathers, or, in other words, birds evolved from their giant ancestors- the feathered dinosaurs. In a recent fossil study, palaeontologists termed Yutyrannus hauli as the largest feathered dinosaur. The fossil is around nine metres long and weighs close to 1,400 kilogrammes with partial or complete feathers (which is still up for debate). This might be the largest feathered dinosaurs, but the modern birds have closer resemblance to a theropod group called- Tyrannoraptors. This group includes everybody’s favourite bipedal predator, the Tyrannosaurs rex. or T. rex. Also Read | A rare black hole is lurking 6,000 light-years away in Earth's cosmic backyard The T. rex fossils are believed to have had patches of skin with few feathers on them, much like with a scaly reptile-like skin that is more commonly associated with softer bird-like feathers. But recent evidence show that Yutyrannus hali is the biggest dinosaur discovered till date with feather. Yutyrannus hali, literally meaning “beautiful feathered tyrant”, was discovered in 2012 after a fossil was purchased from a dealer. The “beautiful feathered tyrant” was big and fuzzy and lived 125 million years ago Whether Yutyrannus huali was partially or completely feathered is contentious, but we do know that it had proto feathers that differ from modern feathers. Proto feathers have long filaments (around 20 centimeters, according to the Australian Museum) that lacked the barbs, barbules, and hooks we see in modern feathers, but are thought to have formed a shaggy coat that would’ve enabled Yutyrannus to keep warm in cold climates. When it comes to comparing proto and modern feathers of Yutyrannus and T. rex, researchers believe that Yutyrannus lived around 125 million years ago during the early Cretaceous period, and by the time T. rex arrived, the feathers saw an evolution. Also Read | Gen Zs are ditching smartphones for 'dumbphones' with minimal features to curb doomscrolling It is estimated that baby T. rex would’ve been the size of a terrier, and it too may have sported a coat of fuzzy proto feathers. Then, as it reached its teenage growth spurt years (when they triple in size in less time), the feathers may have reduced to small patches that could've been useful in mating rituals. One reason to doubt whether adult T. rex were covered in feathers comes down to their physiology. As T. rex grew, its volume increased significantly more than its surface area (skin). In other words, metabolically speaking, it wouldn’t have made sense to be covered in feathers as it would’ve been too hot. Also Read | 'Spacebug' found lurking in ISS. Here's how it is threatening Sunita Williams, crew T. rex’s issue wasn’t getting cold but quite the opposite. When it was a baby and it had high surface area to body volume ratio that would have benefited from the warmth of feathery jacket. That is likely why feathers evolved in the first place, as a form of thermoregulation for small animals with big surface areas that made it hard for them to retain the heat made by their bodies. This approach likely didn’t suit the giant T.rex, however, and so the feathers were lost in some groups but retained by others, including the dinosaurs we share this planet with today. (With inputs from agencies)

Did birds evolve from dinosaurs? Fossils of largest feathered dinosaur hint at ancestry

A T-Rex skeleton has broken the dinosaur fossil&nbsp;record after being sold for&nbsp;d $31.8 million in New York, nearly quadrupling the previous highest price for a dinosaur at auction.

The impressive&nbsp;skeleton nicknamed Stan after&nbsp;an amateur paleontologist who discovered it, is&nbsp;four meters&nbsp;high and 40 feet long.

The apex predator made mincemeat of Christie's opening price of between six and eight million dollars, showing off the lasting power of the T-Rex.

It then shredded the previous record set by a specimen called Sue that was sold for $8.4 million in October 1997 by Sotheby's to the Field Museum of Natural History in Chicago.

Only around 50 Tyrannosaurus fossils have been discovered since the first was unearthed in 1902.

Bids hit the $9 million mark in less than two minutes after the start of the auction, but after 14 minutes there were just three bidders left in the race, until the hammer came down on an offer of $27.5 million, to which were added costs and commissions.&nbsp;

The sale was organized in New York, where the expert assessor was located, but with lines open to Hong Kong and London, where Christie's specialists were taking calls from collectors.

One of the most complete specimens of a T-Rex&nbsp;fossil in the world, the fossil has&nbsp;puncture marks in the skull and neck that experts believe show evidence of fights with fellow T-Rexes. He would have weighed in at around eight tons when alive, some 67 million years ago.

The fossil was discovered in South Dakota in 1987 and named after the amateur paleontologist who came across the remains, Stan Sacrison.

Paleontologists from the Black Hills Institute of Geological Research in South Dakota spent more than 30,000 hours excavating and then assembling the 188 bones of the skeleton.

Casts were then taken for dozens of museums around the world that wanted a copy of this exceptional specimen of Tyrannosaur, which experts believe was around 20 years old when it died.

Ironically, the terms of the sale prevent the buyer from producing 3D models of the dinosaur.&nbsp;

By law, such specimens can only be sold if the fossil was discovered on private land, which in this case it was.

A T-Rex skeleton has broken the dinosaur fossil record after being sold for d $31.8 million in New York, nearly quadrupling the previous highest price for a dinosaur at auction.

A T-Rex skeleton has broken the dinosaur fossil record after being sold for d $31.8 million in New York, nearly quadrupling the previous highest price for a dinosaur at auction. The impressive skeleton nicknamed Stan after an amateur paleontologist who discovered it, is four meters high and 40 feet long. The apex predator made mincemeat of Christie's opening price of between six and eight million dollars, showing off the lasting power of the T-Rex. It then shredded the previous record set by a specimen called Sue that was sold for $8.4 million in October 1997 by Sotheby's to the Field Museum of Natural History in Chicago. Only around 50 Tyrannosaurus fossils have been discovered since the first was unearthed in 1902. Bids hit the $9 million mark in less than two minutes after the start of the auction, but after 14 minutes there were just three bidders left in the race, until the hammer came down on an offer of $27.5 million, to which were added costs and commissions. The sale was organized in New York, where the expert assessor was located, but with lines open to Hong Kong and London, where Christie's specialists were taking calls from collectors. One of the most complete specimens of a T-Rex fossil in the world, the fossil has puncture marks in the skull and neck that experts believe show evidence of fights with fellow T-Rexes. He would have weighed in at around eight tons when alive, some 67 million years ago. The fossil was discovered in South Dakota in 1987 and named after the amateur paleontologist who came across the remains, Stan Sacrison. Paleontologists from the Black Hills Institute of Geological Research in South Dakota spent more than 30,000 hours excavating and then assembling the 188 bones of the skeleton. Casts were then taken for dozens of museums around the world that wanted a copy of this exceptional specimen of Tyrannosaur, which experts believe was around 20 years old when it died. Ironically, the terms of the sale prevent the buyer from producing 3D models of the dinosaur. By law, such specimens can only be sold if the fossil was discovered on private land, which in this case it was.

T-Rex dinosaur fossil named Stan sells for record-breaking $31.8 million

When scientists first unearthed fossils of a horned dinosaur called Centrosaurus in the badlands of Dinosaur Provincial Park in Canada’s Alberta province in 1989, they spotted a badly malformed leg bone they figured was a healed fracture.

A fresh examination, researchers said on Monday, shows something different. The malformation was a manifestation of osteosarcoma, an aggressive bone cancer, making this Centrosaurus, which lived 76 million years ago, the first known example of a dinosaur afflicted by malignant cancer.

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About 20 feet (6 meters) long, Centrosaurus was a four-legged beaked plant-eating Cretaceous Period dinosaur possessing a long horn above its nose and a bony frill above its neck with two smaller hooked horns.

The Centrosaurus fibula, a lower leg bone, contained “a massive gnarly tumor larger than an apple,” said paleontologist David Evans of the Royal Ontario Museum in Toronto, one of the researchers in the study published in the journal Lancet Oncology.

“This particular Centrosaurus was likely weak and lamed by the cancer prior to its death. This remarkable find shows that no matter how big or powerful some dinosaurs may seem, they were affected by many of the same diseases we see in humans and other animals today, including cancer. Dinosaurs seem like mythical beasts, but they were living, breathing animals that suffered through horrible injuries and diseases,” he added.

Because most tumors occur in soft tissue that does not readily fossilize, there is scant evidence of cancer in the fossil record.

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“This finding speaks to the biology of cancer. It is not something novel or new, but probably has occurred since time immemorial and is an expected complication in all animals,” said study co-author Dr. Mark Crowther, a professor of medicine, pathology and molecular medicine at McMaster University in Ontario.

“Osteosarcoma generally occurs in rapidly growing bones and as such is found in children and young adults. Presumably dinosaurs were also at risk because of the fact that they grew at enormous rates,” Crowther added.

The tumor destroys the bone and can spread to other tissues, Crowther said. In people, treatment consists of chemotherapy and surgery that sometimes involves amputation.

The researchers confirmed it was a tumor using high-resolution CT scans and by looking at thin sections of it under the microscope. “We were not only able to demonstrate that the bone tissue showed the hallmarks of osteosarcoma, but that the tumor spiraled through the cortex of bone, discounting its original identification of a healed fracture,” Evans said.

Cancer, however, may not have killed the Centrosaurus. Its body was found in a vast bonebed containing the remains of hundreds of Centrosaurus individuals, suggesting they died as part of a herd caught in a flood, Evans said.

Its cancer may have reduced its mobility to make it an inviting target for big predators like Gorgosaurus and Daspletosaurus. But living within a large herd, Evans said, may have provided safety in numbers that enabled the Centrosaurus to avoid predation as the cancer progressed.

When scientists first unearthed fossils of a horned dinosaur called Centrosaurus in the badlands of Dinosaur Provincial Park in Canada’s Alberta province in 1989, they spotted a badly malformed leg bone they figured was a healed fracture.

When scientists first unearthed fossils of a horned dinosaur called Centrosaurus in the badlands of Dinosaur Provincial Park in Canada’s Alberta province in 1989, they spotted a badly malformed leg bone they figured was a healed fracture. A fresh examination, researchers said on Monday, shows something different. The malformation was a manifestation of osteosarcoma, an aggressive bone cancer, making this Centrosaurus, which lived 76 million years ago, the first known example of a dinosaur afflicted by malignant cancer. Also read: Star Wars inspires scientists to create sense-capable artificial skin About 20 feet (6 meters) long, Centrosaurus was a four-legged beaked plant-eating Cretaceous Period dinosaur possessing a long horn above its nose and a bony frill above its neck with two smaller hooked horns. The Centrosaurus fibula, a lower leg bone, contained “a massive gnarly tumor larger than an apple,” said paleontologist David Evans of the Royal Ontario Museum in Toronto, one of the researchers in the study published in the journal Lancet Oncology. “This particular Centrosaurus was likely weak and lamed by the cancer prior to its death. This remarkable find shows that no matter how big or powerful some dinosaurs may seem, they were affected by many of the same diseases we see in humans and other animals today, including cancer. Dinosaurs seem like mythical beasts, but they were living, breathing animals that suffered through horrible injuries and diseases,” he added. Because most tumors occur in soft tissue that does not readily fossilize, there is scant evidence of cancer in the fossil record. Also read: Black holes may be repositories of all of universe's history! “This finding speaks to the biology of cancer. It is not something novel or new, but probably has occurred since time immemorial and is an expected complication in all animals,” said study co-author Dr. Mark Crowther, a professor of medicine, pathology and molecular medicine at McMaster University in Ontario. “Osteosarcoma generally occurs in rapidly growing bones and as such is found in children and young adults. Presumably dinosaurs were also at risk because of the fact that they grew at enormous rates,” Crowther added. The tumor destroys the bone and can spread to other tissues, Crowther said. In people, treatment consists of chemotherapy and surgery that sometimes involves amputation. The researchers confirmed it was a tumor using high-resolution CT scans and by looking at thin sections of it under the microscope. “We were not only able to demonstrate that the bone tissue showed the hallmarks of osteosarcoma, but that the tumor spiraled through the cortex of bone, discounting its original identification of a healed fracture,” Evans said. Cancer, however, may not have killed the Centrosaurus. Its body was found in a vast bonebed containing the remains of hundreds of Centrosaurus individuals, suggesting they died as part of a herd caught in a flood, Evans said. Its cancer may have reduced its mobility to make it an inviting target for big predators like Gorgosaurus and Daspletosaurus. But living within a large herd, Evans said, may have provided safety in numbers that enabled the Centrosaurus to avoid predation as the cancer progressed.

'Gnarly' tumor shows dinosaurs got cancer, too

A new research from Yale University suggests that <a href="https://www.wionews.com/world/latest-world-news-fossil-footprints-reveal-existence-of-dinosaurs-in-south-africa-183-million-years-ago-277473">dinosaurs </a>might have been warm-blooded creatures.

The findings have come from an analysis of <a href="https://www.wionews.com/world/latest-world-news-fossil-footprints-reveal-existence-of-dinosaurs-in-south-africa-183-million-years-ago-277473">fossilized </a>eggshells of dinosaurs.

The study was published in the journal of Science Advances.

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This is contrary to the general image of <a href="https://www.wionews.com/world/latest-world-news-fossil-footprints-reveal-existence-of-dinosaurs-in-south-africa-183-million-years-ago-277473">dinosaurs </a>who are considered as cold-blooded and scaly reptiles.

"Dinosaurs are at an evolutionary point between birds, which are warm-blooded, and reptiles, which are cold-blooded," said Robin Dawson, who conducted the research while she was a doctoral student in geology and geophysics at Yale.&nbsp;

"Our results suggest that all major groups of <a href="https://www.wionews.com/world/latest-world-news-fossil-footprints-reveal-existence-of-dinosaurs-in-south-africa-183-million-years-ago-277473">dinosaurs </a>had warmer body temperatures than their environment," she added.

The researchers tested eggshell fossils from a Troodon, a small, meat-eating Therapod (the same family as the <a href="https://www.wionews.com/world/researchers-find-distant-relative-of-t-rex-in-argentina-280975">T-Rex</a>), a duck-billed, plant-eating dinosaur called a Maiasaura and a Megaloolithus, a sauropod known for its huge size.

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The internal temperature of dinosaurs can be analyzed by assessing the oxygen and the carbon atoms in fossilized egg shells.

This process is called as "clumped isotope paleothermometry."

"Eggs, because they are formed inside dinosaurs, act like ancient thermometers," said Pincelli Hull, an assistant professor at Yale University's Department of Geology and Geophysics, and a co-author of the study.

On the analysis of their fossilized egg shells researchers discovered that the dinosaurs' body temperatures were warmer than their surroundings would have been.&nbsp;

So unlike reptiles, which rely on heat from the environment, the research indicates that dinosaurs were capable of internally generating heat.

Whether dinosaurs were cold or warm-blooded has been a long-running debate among paleontologists.&nbsp;

A new research from Yale University suggests that dinosaurs might have been warm-blooded creatures. The findings have come from an analysis of fossilized eggshells of dinosaurs.

A new research from Yale University suggests that dinosaurs might have been warm-blooded creatures. The findings have come from an analysis of fossilized eggshells of dinosaurs. The study was published in the journal of Science Advances. Also read: Fossil footprints reveal existence of dinosaurs in South Africa 183 million years ago This is contrary to the general image of dinosaurs who are considered as cold-blooded and scaly reptiles. "Dinosaurs are at an evolutionary point between birds, which are warm-blooded, and reptiles, which are cold-blooded," said Robin Dawson, who conducted the research while she was a doctoral student in geology and geophysics at Yale. "Our results suggest that all major groups of dinosaurs had warmer body temperatures than their environment," she added. The researchers tested eggshell fossils from a Troodon, a small, meat-eating Therapod (the same family as the T-Rex), a duck-billed, plant-eating dinosaur called a Maiasaura and a Megaloolithus, a sauropod known for its huge size. Also read: Researchers find distant relative of T-Rex in Argentina The internal temperature of dinosaurs can be analyzed by assessing the oxygen and the carbon atoms in fossilized egg shells. This process is called as "clumped isotope paleothermometry." "Eggs, because they are formed inside dinosaurs, act like ancient thermometers," said Pincelli Hull, an assistant professor at Yale University's Department of Geology and Geophysics, and a co-author of the study. On the analysis of their fossilized egg shells researchers discovered that the dinosaurs' body temperatures were warmer than their surroundings would have been. So unlike reptiles, which rely on heat from the environment, the research indicates that dinosaurs were capable of internally generating heat. Whether dinosaurs were cold or warm-blooded has been a long-running debate among paleontologists.

Dinosaurs might have been warm-blooded creatures: Research

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