The whites of your eyes are not an accident. They are, scientists now believe, one of the most sophisticated social ...

Why the Latest Science Leads Us to a New Theory of Human Nature, by Jonathan Leaf (Bombardier, 320 pp., $21) Ever since Darwin, biologists have believed that much could be learned about human nature ...

A new study questions whether human violence is natural, finding that mild aggression and lethal violence follow different ...

Here's something that'll make your next giggle session feel a bit weird: scientists genuinely can't figure out if your laughter evolved from joyful chimp panting or from the threatening bared-teeth ...

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.

Recent investigations into primate behaviour have underscored the importance of cultural evolution — the process by which behaviours and skills are socially transmitted and refined over successive ...

Stories centered around true love's kiss might be tales as old as time. And, according to a new study, kisses might even have been around before humans walked the earth. Humans kiss each other ...

What events led to differences between humans and other primates? What changes throughout evolution underlie such a dramatic shift in how we socialize and process information? Although somewhat ...

If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...