By Aimable Twahirwa The fact that primates other than humans engage in homosexual behavior is well-documented. A recent study ...

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

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 ...

A comprehensive new study has examined the prevalence of same-sex behavior in dozens of primate species.

The observation of homosexual behaviors in animals has long raised questions about their origins and functions. A recent study, focused on primates, shows that these behaviors are not random but ...

PARIS — Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh environments, are hunted by predators or live in more complex societies, ...

A large comparative study of primate teeth shows that grooves once linked to ancient human tooth-picking can form naturally, while some common modern dental problems appear uniquely human.

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.