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.
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
trace fossils
Image of the Day: Ancient Traces
The Scientist Staff | Sep 12, 2017
Scientists uncovered 500-million-year-old fossilized burrows, up to 600 microns in diameter, made by one of the world’s first freely moving animals.