Life on Earth had to begin somewhere, and scientists think that “somewhere” is LUCA—or the Last Universal Common Ancestor. True to its name, this prokaryote-like organism represents the ancestor of ...

The biological study of species offers no equivalent to such transmutation. An individual which belongs to a given species ...

Scientists have digitally reconstructed a 1 million-year-old skull unearthed in China. The analysis potentially shakes up ...

Tuna, salmon, mackerel. I’ve never looked at my afternoon sushi and wondered if it’s related to humans. So, I asked one of those friends named Thomas Siek. He’s a biological anthropologist at ...

Imagine the tree of life. The tip of every branch represents one species, whether you're talking about humans, E. coli, tardigrades, baker's yeast or giant kelp. If you follow any two branches back ...

From the small ossicones on a giraffe to the gigantic antlers of a male moose -- which can grow as wide as a car -- the headgear of ruminant hooved mammals is extremely diverse, and new research ...

What do you, your next door neighbour and Eskimos have in common? We are all children of the same ancestor. According to paleontologists, this ancestor once roamed the plains of the Great Rift Valley, ...

The mystery of how related flightless birds ended up so far apart on different continents may have been solved.

What makes the "Grue Jay" special? He is a slightly paler blue than its Blue Jay dad, but has the same face mask as its Green Jay mom. Genetic testing revealed its parents.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A new study suggests ...

All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A new study suggests that this organism likely lived on Earth only 400 million years after its formation. Further ...