Rex

Complex armored dinosaur behavior: Ankylosaurs fought as much as they fought T. rex

Complex armored dinosaur behavior: Ankylosaurs fought as much as they fought T. rex

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Crurivastator Zuul in battle. Credit: Illustrated by Henry Sharpe. © Henry Sharpe Zuul shows that ankylosaurs may have also used their tail clubs for social dominance. Scientists have found new evidence of how armored dinosaurs used their signature tail clubs. The exceptional fossil of the ankylosaurus The bloodcurdling roar has spikes along its flanks that …

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The Ankylosaur's Tail-Club Wasn't Just Swinging at T. Rex

The Ankylosaur’s Tail-Club Wasn’t Just Swinging at T. Rex

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To ward off oversized predators, many herbivorous dinosaurs were biologically armed to the teeth. Some had skulls studded with horns, while others had spiked tails. But few matched the arsenal of ankylosaurs, a group of herbivores that peaked in diversity during the Cretaceous period. Most of the ankylosaur’s body was encased in bony plates that …

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A dinosaur bigger than T. rex could not swim well despite the presence of large fish on the menu | CNN

A dinosaur bigger than T. rex could not swim well despite the presence of large fish on the menu | CNN

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Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — The largest predatory dinosaur to ever walk the Earth sported a massive sail that rose from its back, but it turns out that this hulking creature would have made a very slow and …

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Prehistoric Superpredator: Strange Whatcheeria Was the "T. rex of its time"

Prehistoric Superpredator: Strange Whatcheeria Was the “T. rex of its time”

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whatcheeria was a prehistoric apex predator. It was a six-foot-long lake creature with a salamander-like body and a long, narrow head. Credit: Adrienne Stroup, Field Museum The former super predator from Iowan got big by accelerating its growth in its youth. Fossils found only at the Field Museum reveal the growth history of Whatcheeria. Although …

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A reconstruction of what the new tyrannosaur, Daspletosaurus wilsoni, may have looked like.

Never-Before-Seen ‘Scary’ Tyrannosaurus Could Be the ‘Missing Link’ in T. Rex Evolution

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A reconstruction of what the new tyrannosaurus, Daspletosaurus wilsoni, may have looked like. Fossils suggest it had a unique arrangement of spiked hornets surrounding its eyes. (Image credit: Andrey Atuchin & Badlands Dinosaur Museum) (opens in a new tab) Paleontologists have discovered the remains of a never-before-seen tyrannosaurus that may have been a direct ancestor …

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