Tyrannosaurus Rex News

April 18, 2024

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Dinosaur Study Challenges Bergmann's Rule

Apr. 5, 2024 — A new study calls into question Bergmann's rule, an 1800s-era scientific principle stating that animals in high-latitude, cooler climates tend to be larger than close relatives living in warmer ...

Early Dinosaurs Grew Up Fast, but They Weren't the Only Ones

Apr. 3, 2024 — The earliest dinosaurs had rapid growth rates, but so did many of the other animals living alongside them, according to a new ...

Higher Carnivorous Dinosaur Biodiversity of Famous Kem Kem Beds, Morocco

Mar. 12, 2024 — An international team of palaeontologists applied recently developed methods to measure theropod (carnivorous) dinosaur species diversity. The newly applied method uses both traditional phylogenetic analysis, discriminant analysis as well as machine ...

Fossils of Giant Sea Lizard With Dagger-Like Teeth Show How Our Oceans Have Fundamentally Changed Since the Dinosaur Era

Mar. 5, 2024 — Fossils of a strange new species of marine lizard with dagger-like teeth that lived 66 million years ago, show a dramatically more biodiverse ocean ecosystem to what we see ...

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Cosmic Building Blocks of Life Discovered Through the Electron Microscope

Jan. 29, 2024 — Meteorites are fragments of asteroids which find their way to Earth as shooting stars and provide information on the origins of our solar system. A team of researchers has examined the so-called ...

'Juvenile T. Rex' Fossils Are a Distinct Species of Small Tyrannosaur

Jan. 2, 2024 — A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex. The species, Nanotyrannus ...

Why the Long Face? Scientists Solve a Major Puzzle in Mammal Skull Shape Evolution

Dec. 12, 2023 — Horses have developed long faces simply 'because they can,' a team of evolutionary biologists say. In a major review of how mammalian heads evolve, ...

This Japanese 'Dragon' Terrorized Ancient Seas

Dec. 12, 2023 — Researchers have described a Japanese mosasaur the size of a great white shark that terrorized Pacific seas 72 million years ago. The mosasaur was named for the place where it was found, Wakayama ...

Unknown Animals Were Leaving Bird-Like Footprints in Late Triassic Southern Africa

Nov. 29, 2023 — Ancient animals were walking around on bird-like feet over 210 million years ago, according to a new ...

New Study Reveals Surprising Insights Into Feeding Habits of Carnivorous Dinosaurs in North America

Nov. 14, 2023 — New research sheds light on the dining habits of ancient carnivorous dinosaurs from Jurassic rocks of the USA. A recent study explores the bite marks ...

New Species of Mosasaur Named for Norse Sea Serpent

Oct. 30, 2023 — Scientists have discovered a new species of mosasaur, large, carnivorous aquatic lizards that lived during the late Cretaceous. With 'transitional' traits that place it between two well-known ...

Race to Find World's Oldest Mammal Fossils Led to Mud-Slinging

Oct. 10, 2023 — The hunt for the world’s most ancient mammals descended into academic warfare in the seventies, researchers have ...

A Turtle Time Capsule: DNA Found in Ancient Shell

Sep. 28, 2023 — Paleontologists discover possible DNA remains in fossil turtle that lived 6 million years ago in Panama, where continents ...

Europe's Very Own Dinosaurs -- The Enigmatic Late Cretaceous Rhabdodontids

Aug. 30, 2023 — A new study brings together intriguing details about the little-known Rhabdodontidae dinosaurs of Late Cretaceous Europe. These gregarious herbivores, characterized by robust builds and beaks ...

Scientists CT Scanned Thousands of Natural History Specimens, Which You Can Access for Free

Mar. 6, 2024 — Natural history museums have entered a new stage of scientific discovery and accessibility with the completion of openVertebrate (oVert), a five-year collaborative project among 18 institutions to ...

Newly Discovered 'Primitive Cousins of T Rex' Shed Light on the End of the Age of Dinosaurs in Africa

Aug. 23, 2023 — Researchers have discovered the fossils of two new abelisaurs in Morocco, showing the diversity of dinosaurs in this region at the end of the Cretaceous ...

Scientists Explore Dinosaur 'Coliseum' in Denali National Park

Aug. 14, 2023 — Scientists have discovered and documented the largest known single dinosaur track site in Alaska. The site, located in Denali National Park and Preserve, has been dubbed 'The Coliseum' by ...

Unusual Fossil Shows Rare Evidence of a Mammal Attacking a Dinosaur

July 18, 2023 — Scientists have described an unusual fossil from around 125 million years ago in China that shows a dramatic moment in time when a carnivorous mammal attacked a larger plant-eating dinosaur. The two ...

Humans' Ancestors Survived the Asteroid Impact That Killed the Dinosaurs

June 27, 2023 — A Cretaceous origin for placental mammals, the group that includes humans, dogs and bats, has been revealed by in-depth analysis of the fossil record, showing they co-existed with dinosaurs for a ...

First Hominin Muscle Reconstruction Shows 3.2 Million-Year-Old 'Lucy' Could Stand as Erect as We Can

June 14, 2023 — Digital modelling of legendary fossil's soft tissue suggests Australopithecus afarensis had powerful leg and pelvic muscles suited to tree dwelling, but knee muscles that allowed fully erect ...

Giants of the Jurassic Seas Were Twice the Size of a Killer Whale

May 10, 2023 — There have been heated debates over the size of Jurassic animals. The speculation was set to continue, but now a chance discovery in an Oxfordshire museum has led to palaeontologists publishing a ...

Predatory Dinosaurs Such as T. Rex Sported Lizard-Like Lips

Mar. 30, 2023 — A new study suggests that predatory dinosaurs, such as Tyrannosaurus rex, did not have permanently exposed teeth as depicted in films such as Jurassic Park, but instead had scaly, lizard-like lips ...

Uracil Found in Ryugu Samples

Mar. 21, 2023 — Samples from the asteroid Ryugu collected by the Hayabusa2 mission contain nitrogenous organic compounds, including the nucleobase uracil, which is a part of ...

Evolution of Dinosaur Body Size Through Different Developmental Mechanisms

Feb. 23, 2023 — The meat-eating dinosaurs known as theropods that roamed the ancient Earth ranged in size from the bus-sized T. rex to the smaller, dog-sized Velociraptor. Scientists puzzling over how such wildly ...

Oldest Spinosaur Brains Revealed

Feb. 13, 2023 — Researchers have reconstructed the brains and inner ears of two British spinosaurs, helping uncover how these large predatory dinosaurs interacted with their ...

Researchers Uncover 92 Fossil Nests Belonging to Some of India's Largest Dinosaurs

Jan. 18, 2023 — The discovery of more than 250 fossilized eggs reveals intimate details about the lives of titanosaurs in the Indian subcontinent, according to a new ...

Scientists Study Life Origins by Simulating a Cosmic Evolution

Jan. 11, 2023 — Amino acids make up millions of proteins that drive the chemical gears of life, including essential bodily functions in animals. Because of amino acids' relationship to living things scientists ...

Origins of the Building Blocks of Life

Jan. 11, 2023 — A new study posits that interstellar cloud conditions may have played a significant role on the presence of key building blocks of life in the solar ...

The Other Paleo Diet: Rare Discovery of Dinosaur Remains Preserved With Its Last Meal

Dec. 21, 2022 — Microraptor was an opportunistic predator, feeding on fish, birds, lizards -- and now small mammals. The discovery of a rare fossil reveals the creature was a generalist carnivore in the ancient ...

Scientists Discover What Was on the Menu of the First Dinosaurs

Dec. 16, 2022 — The earliest dinosaurs included carnivorous, omnivorous and herbivorous species, according to a team of ...

Dinosaur Teeth Reveal What They Didn't Eat

Dec. 9, 2022 — Scratches on dinosaur teeth could reveal what they really ate. Dental microwear texture analysis (DMTA) has now been used to infer the feeding habits of large theropods, including Allosaurus and T. ...

Dinosaurs Were on the Up Before Asteroid Downfall

Dec. 7, 2022 — Dinosaurs dominated the world right up until a deadly asteroid hit the earth, leading to their mass extinction, some 66 million years ago, a landmark study reveals. Fresh insights into ...

Ankylosaurs Battled Each Other as Much as They Fought Off T. Rex

Dec. 6, 2022 — Scientists have found new evidence for how armored dinosaurs used their iconic tail clubs. The exceptional fossil of the ankylosaur Zuul crurivastator has spikes along its flanks that were broken and ...

Ancient Superpredator Got Big by Front-Loading Its Growth in Its Youth

Nov. 28, 2022 — Whatcheeria, a six-foot-long salamander-like creature that lived 340 million years ago, was the T. rex of its time: the biggest, baddest predator in its habitat. A new study reveals how they grew to ...