Despite startling breakthroughs, the first words and signs of great apes are rarely publicly celebrated by scientists.

Xiaomanyc taught himself ape communication and tested his knowledge with the bonobos at the Ape Initiative in Des Moines, ...

National Geographic's upcoming docuseries, 'Secrets of the Penguins,' captured a shocking encounter between a mother rockhopper penguin and giant, hungry sea lion, and PEOPLE has a first look at the f ...