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

Groundbreaking research reveals that human microbes can trigger genetic brain activity in other species, suggesting our ...

For more than a century, scientists have treated the brain as the undisputed command center of human evolution, with the rest ...

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

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

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

A new primate study links same-sex behaviour to survival, social bonding, and environmental stress, raising intriguing ...

The meaning of taxonomic statements / George Gaylord Simpson -- East African fossil Hominoidea and the classification within the super-family / L.S.B. Leakey -- Quantitative taxonomy and human ...