Monkeys use grooming to reinforce male-female mate bonds as well as same sex friendship bonds.
Proboscis monkeys from Borneo and cows have something in common: they both chew their cuds.
When scientists studied parrot genes involved in brain development, they were surprised to find some unexpected similarities with humans.
A recent study shows that monkeys place a high value on satisfying their curiosity.
Scientists made titi monkeys jealous to study what a jealous brain looked like.
Read some of our best posts about food and science to get ready for Thanksgiving.
An organism's niche is what it needs to grow and survive. One way to coexist is to use different resources, also known as niche partitioning.
Capuchin monkeys punish fellow chimps for taking more than their fair share.
The jury is still out on whether or not chimps are self-aware. Actually, the same goes for young children.