These friendships often lasted for life, and scientists say they show how male primates can use kindness and affection to ...

Researchers discovered uniquely human neuroanatomical features in a study comparing human brains to macaque and chimpanzee ...

Sixty million years ago most primates had twins automatically but our mammalian ancestors ceased birthing them to give us an evolutionary advantage, according to the findings of a new study.

Cranial Size and Shape Next to phylogeny, perhaps the most pervasive influence on primate cranial form is body size. In primates, as in other mammals, the physical dimensions of the major cranial ...

Researchers have widely accepted that what sets humans apart from nonhuman primates are prefrontal cortex–driven behaviors ...

Primates are smart, flexible, and adaptive creatures. How have they responded to changes in climate over millions of years? Climate is the major factor that determines where a species can and ...

“At first glance, the darker forest understory caused by dinosaur extinctions may seem unimportant, but it could have directly led to the evolution of our fruit-eating primate ancestors," study ...