Researchers have charted the evolution of the leggy alterations that allowed dinosaurs and birds to stand on their own two feet.
Prehistoric footprints attributed to a vicious dinosaur predator are actually from a timid herbivore, artificial intelligence indicates.
The asteroid impact at Chicxulub set off a tsunami “strong enough to disturb and erode sediments in ocean basins halfway around the globe.”
A crater from an asteroid scientists think hit Earth around the same time as the one that killed the dinosaurs brings up the question, “Are there others?”
New findings indicate how the feet truly enormous sauropod dinosaurs could support their massive weight.
A medium-sized sauropod dinosaur that lived in northern Columbia about 175 million years ago helps rewrite the history of sauropods in South America.
The first dinosaurs had metabolisms akin to today’s birds. “Dinosaurs included remarkably swift and agile animals,” says Derek Briggs.
A newly discovered fossil belongs to a softshell turtle that lived alongside Tyrannosaurus rex and triceratops in North Dakota 66.5 million years ago.