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

Same-sex behavior is widespread in primates and may help strengthen social bonds and improve survival under challenging ...

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, ...

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

In truth, it is not a paradox. The animals involved all seem perfectly eager participants in heterosexual behaviour, as well, so their reproduction is not compromised. It is, though, a puzzle—for ...

Between Nigeria’s Cross River and Cameroon’s Sanaga River lies one of West Africa’s largest remaining blocks of intact ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and vitality, while others see them as a philosophical reminder of the duality of ...

Primate species with better color vision are not more likely to have red skin or fur coloration, as previously thought. Primate species with better colour vision are not more likely to have red skin ...

From lemurs to orangutans, tarsiers to gorillas, primates are captivating and sometimes unnervingly similar to us. So it’s not surprising that this group of more than 500 species receives a great deal ...

A formation famous for producing T. rex fossils has now yielded the oldest evidence of primates in the fossil record, in what is being hailed a significant discovery. Jawbones and an assortment of ...