The evolutionary journey from primitive plesiadapiforms to early primates during the Paleocene and Eocene epochs represents a critical chapter in mammalian history. Fossil records from these periods ...

As animals go about their lives ― eating, fighting, having babies ― they don’t always follow the script laid out for them by ...

BUFFALO, N.Y. ­­ ­ ­­— Saliva is a bodily fluid most of us take for granted despite the significant roles it plays: aiding in digestion, maintaining strong teeth and defending against oral disease.

Purchased with funds from the S. Dillon Ripley Endowment. Cover -- Cortical Evolution in Primates -- Copyright -- Dedication -- Contents -- List of figures and tables ...

The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent ...

Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...

Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry habitats and predator-rich landscapes.

A new study from Northwestern University is reshaping how scientists think about brain evolution. The research suggests that ...