Why do humans keep pets? A new international study suggests that some of the behavioral foundations of human-animal ...

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. However, the evolution of ...

Situations included tufted gray langurs ( Semnopithecus priam) petting squirrels in Sri Lanka, snub-nosed monkeys ( ...

Biologists group animals with similar traits into broad categories called orders. Despite their similarities, animal species in the same order can have very different average lifespans. Subscribe to ...

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 ...

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.

The story of primates is a tale of incredible variety and ancient roots, told through the lens of science, DNA, and time itself. These creatures, ranging from massive gorillas to tiny mouse lemurs, ...

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