A new study indicates the giant reptile Deinosuchus is not a close relative of modern alligators, as scientists previously ...

Imagine a world where massive, shaggy giants wandered ancient forests, their claws tearing at trees and their bulk reshaping ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the ...

In the waters off New England, one of Earth's rarest mammals swims slowly, mouth agape. The North Atlantic right whale ...

Ornithologist Bruce Beehler tracks down what he calls the “Magnificent Seven,” a charismatic group of migratory birds, in his ...

The Alamosaurus is the largest known land dinosaur in North America. Big Bend National Park contains fossils from over 90 dinosaur species, some of which are unique to the park. A giant bone from ...

Mammoths roamed the tundra, saber-toothed cats hunted in forests, and giant sloths lumbered ... As humans migrated across North America, they may have hunted these large mammals to extinction.

Snowy owls and tropical kingbirds. Across North America, three-fourths of bird species are in decline, according to a sweeping study of avian populations published Thursday, the latest sign of a ...

Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study.

A Kenyan court on Wednesday fined four men $7,700 each for trying to traffic thousands of ants valuable to the country's ...

T. rex was previously suspected to have evolved in Asia and migrated to North America, but new research shows that the direct ...

One of the largest crocodilians that ever lived preyed on dinosaurs. New research has found the fearsome Deinosuchus had a key trait that modern alligators lack.