Life was pretty nice during the Ediacaran, so the need for sex was rather limited,” Emily Mitchell, a paleozoologist at the ...

A study has found that the reason why the evolution of the first animals to appear on Earth was delayed for over 10 million ...

Earth’s earliest animals may have held evolution back because they reproduced asexually, creating low-competition communities ...

How ancient bryozoans may have looked. (Zhifei Zhang) The Cambrian explosion was one of the most dramatic chapters in the ...

A recent study by Ruibao Li and Jennah Dharamshi published in Nature may help us understand the beginnings of animal ...

Beneficial mutations happen quite frequently, but the world changes too fast for them to stick.

“Love makes fools of all of us,” wrote 19th-century novelist William Makepeace Thackeray. A moment spent watching the pigeons ...

The animal kingdom is full of genius minds. Crows are able to solve complex multi-step puzzles, octopuses can plan complex ...

Add Yahoo as a preferred source to see more of our stories on Google. Once upon a time, there were a bunch of one-celled microbes, swimming, eating, reproducing, doing all the things that a one-cell ...

Think you can spot the difference? Discover 14 famous pairs of look-alike animals that are completely separate biological ...

Typically, the information encoded in DNA allows organisms to develop, function, and pass traits across generations. Yet DNA ...

Humans take nearly 18 to 25 years to reach full maturity, far longer than most mammals. This slow human growth is driven by ...