Giant camels used to roam what’s now Los Angeles. If you visit the city’s La Brea asphalt seeps, you can see their bones, ...

North America used to be crawling with giant mammals, from dire wolves to big cats. Horses and camels evolved on the continent while others, like bison, crossed over from Asia. Most of these mammals ...

Across its time harbouring life on Earth, North America has seen some of the most dangerous animals known to the fossil record. The continent has seen everything, from giant dinosaurs, to monstrous, ...

The Cairo Fossil Forest is the second oldest in the world. These forests mark a turning point in Earth's history because they ...

As well as having long-lasting consequences for Native Americans to this day, the bison population of North America was ...

The fossils were found at Big Bend National Park in Texas. Paleontologists have found fossilized remains of a giant possum-like mammal that lived 60 million years ago. The fossils, found at Big Bend ...

Traskasaura sandrae is a "very odd" mix of primitive and derived traits. A prehistoric sea monster never-before-known to man was hunting prey in North America 85 million years ago, fossils found ...

This week, the U.S. Fish and Wildlife Service announced in a press release that a prehistoric species of turtle native to Florida is officially a federally threatened species under the Endangered ...

Written by Smithsonian botanist W. John Kress, the book details more than 300 North American tree species in words, maps and photographs—and why we shouldn’t take them for granted Jennie Rothenberg ...