Being social has upsides and downsides for mountain gorillas, according to a new paper that scientists say may help explain why some humans have more friends than others. In the work published Monday ...

A study of gorillas in the wild has revealed the "complex" pros and cons of friendship. The findings may explain why some people are less sociable than others, say scientists. An international team of ...

The relationships built up between female mountain gorillas are more important than previously understood, new research from Rwanda suggests. It shows that when one of these social great apes moves ...

What do you do when you first walk into a party? Maybe you scan the room looking for friends. If you don’t see any, or if you see someone you’d rather avoid, you might just sneak out and head to ...

EDITOR’S NOTE: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...