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 ...

Researchers uncover evidence that the gut microbiome and brain connection can influence brain gene expression and neural ...

Discover how recent research challenges traditional views on evolution by revealing the crucial survival functions of ...

The researchers found that same-sex behavior was more common in primate groups with clear hierarchical structures and those ...

Add Yahoo as a preferred source to see more of our stories on Google. Twins are uncommon in human history. Tesla Monson Our recent research suggests that twins were actually the norm much further back ...

Primate evolution claim challenged An analysis of 37 million year old primate fossils is fueling a debate over the existence of an evolutionary link between lemur-like and monkey-like primates -- a ...

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

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in ...

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 ...