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.

Longer thumbs mean bigger brains and this is “pivotal” to human evolution, research has found. Scientists studied 94 fossils and living animals to understand how our ancestors developed their gripping ...

Scientists have long suspected that the trillions of microbes in our intestines do more than digest lunch, but new work goes much further, showing that human gut bacteria can push mouse brains to ...

Tiny fossil teeth from Colorado are revealing new clues about the very first relatives of primates, including humans.

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 ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Human newborns arrive remarkably underdeveloped. The reason lies in a deep evolutionary ...

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 ...