The first Trump administration built long segments of steel wall on Arizona's border. Conservationists fear wildlife will ...

A new fossil discovery is shedding light on a previously unknown Tyrannosaur species. This close relative of the ...

A newly identified prehistoric species, Terastiodontosaurus marcelosanchezi, has stunned paleontologists by becoming the ...

Cambridge University Library Here Conrad Martens depicts Guanaco Island, in Patagonia, named for the wild llama-like animals that would become a regular meal for the crew of the Beagle.