The findings may have implications for radiotherapy, a cancer treatment that can cause damage to salivary glands and leave lasting complications.

In the book’s prologue, author Daniel T. Blumstein explains his introduction to the study of fear.

Sharp drops in global temperatures helped seal the fate of three extinct hominin species, including our close relatives, the Neanderthals, according to thousands of archaeological specimens and a model of past climate conditions.

The primordial emotion is apt to run amok. But harnessing it can lead to responsible behavior and sound thinking.

Fear binds us to our human and nonhuman ancestors. Understanding the emotion can help us grapple with challenges we face today.

A selective advantage may have led the modern human Y chromosome to sweep through the Neanderthal population after it was introduced via interbreeding more than 100,000 years ago.

A new genetic analysis confirms prior sightings in New Guinea.

Africa’s sparse fossil record alone cannot reveal our species’ evolutionary history.

Modern human genomes and bones left behind from ancient hominins in Africa tell a complex story about the origins of our species.