Fossil findings shed light on a little-known group of Cretaceous-era beasts—and indicate that the combination of a large head and diminutive arms was no evolutionary fluke.
The Dino That Looked T. Rex-y Long Before T. Rex
The Dino That Looked T. Rex-y Long Before T. Rex
Fossil findings shed light on a little-known group of Cretaceous-era beasts—and indicate that the combination of a large head and diminutive arms was no evolutionary fluke.
Fossil findings shed light on a little-known group of Cretaceous-era beasts—and indicate that the combination of a large head and diminutive arms was no evolutionary fluke.
A new analysis of fossil footprints suggests that the 2-meter-tall, 4- to 5-meter-long carnivores that left them could run nearly 45 kilometers per hour, bolstering the evidence that at least some dinosaurs were speedy, agile hunters.
A newly described horse-size relative of Tyrannosaurus rex may help settle the question of how massive carnivorous dinosaurs took shape throughout the eons.