The hunting and gathering activities of early humans required a high-calorie diet consisting of a variety of macronutrients—protein, carbohydrates, and fat. While hunting big-game animals—like deer, ...

A new University of California San Diego study published in Cell challenges a long-standing assumption about how animal viruses become capable of sparking human epidemics and pandemics. Using a ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The human body is full of evolutionary compromises. The loss of the tail may be one of the ...

The Indigenous peoples of the Bolivian highlands are survivors. For thousands of years they have lived at altitudes of more than two miles, where oxygen is about 35 percent lower than at sea level.

Around 400,000 years ago, a band of Neanderthals, or their ancestors, in Britain struck flint with pyrite and built a fire repeatedly in the same spot. Archaeologists studying the site think it is the ...