Octopuses, with their doughnut-shaped brain and hundreds of millions of neurons, have demonstrated intelligence in many ways.

Very few people live beyond a century. So, if no one had babies anymore, there would probably be no humans left on Earth within 100 years. But first, the population would shrink as older folks died ...

Have you ever wondered what the world would be like if everyone suddenly disappeared? What would happen to all our stuff? What would happen to our houses, our schools, our neighborhoods, our cities?

DNA has shown that the extinct humans thrived around the world, from chilly Siberia to high-altitude Tibet — perhaps even in the Pacific islands. By Carl Zimmer Leer en español Neanderthals may have ...

Modern human beings are the ultimate apex species, exerting dominance over our environment in a way that no other animal ever has. However, the other members of our species' lineage weren't nearly as ...

Bone remains found in a Tibetan cave 3,280 m above sea level indicate an ancient group of humans survived here for many millennia, according to a new study published in Nature. The Denisovans are an ...

July 3 (Reuters) - Thousands of bone fragments discovered in a cave on the Tibetan Plateau in China are offering rare insight into the lives of Denisovans, the mysterious extinct cousins of ...

The debate has raged for decades: Was it humans or climate change that led to the extinction of many species of large mammals, birds, and reptiles that have disappeared from Earth over the past 50,000 ...

The earliest known ancestors of turtles appeared about 220–240 million years ago (in the late Triassic period), roughly the ...

This A.I.-generated illustration shows what some of the undiscovered extinct birds might have looked like. U.K. Center for Ecology & Hydrology Humans have likely driven 1,430 bird species to ...