The killer whales ripped the liver out of a shark and passed it around—only the second time orcas have been seen engaging in ...

For nearly two centuries, paleontologists have wondered what saber-toothed cats really looked like. Despite models in museums, dramatic paleoart, and even a starring spot in the Ice Age movies, the ...

Six million marauding antelope and a close encounter with a deadly shark also feature in National Geographic's Pictures of ...