Reconstruction of an indeterminate theropod running on lacustrine sediments during low water timespan.
Car-Sized, Meat-Eating Dinosaur Could Run Faster Than Usain Bolt
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.
ABOVE: Pablo Navarro-Lorbés
Car-Sized, Meat-Eating Dinosaur Could Run Faster Than Usain Bolt
Car-Sized, Meat-Eating Dinosaur Could Run Faster Than Usain Bolt

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 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.

ABOVE: Pablo Navarro-Lorbés

T. rex

Who Owns the ‘Dueling Dinos’? Montana Supreme Court To Decide
Ashley P. Taylor | Jul 11, 2019
The answer has broad implications for paleontology research—and maybe for museum collections, too.
Image of the Day: Scotty the T. rex
Carolyn Wilke | Mar 25, 2019
The world’s largest T. rex found to date likely weighed nearly 20,000 pounds during its life.
Painting Dinosaurs, early 20th century
Diana Kwon | Jan 1, 2019
Charles R. Knight’s illustrations shaped the public’s view of prehistoric life.
Dinosaur Footprints Give Clues to Middle Jurassic
Ashley Yeager | Apr 3, 2018
One hundred seventy million years ago, sauropods and theropods trekked across what is now Scotland’s Isle of Skye.
Brains Before Brawn
Bob Grant | Mar 16, 2016
A newly described horse-size relative of Tyrannosaurus rex may help settle the question of how massive carnivorous dinosaurs took shape throughout the eons.
T. rex’s Vegetarian Cousin
Bob Grant | Apr 28, 2015
Researchers discover a considerably less ferocious branch of the family tree that includes one of the most fearsome dinosaurs to ever walk the Earth.