When most people think about natural selection, they imagine individuals competing with one another: The fastest animal ...

Group Selection Was Debated For Decades. A New Review Says The Empirical Case Is Far Stronger Than Critics Claimed. In A Nutshell A new review of nearly 3,000 scientific papers found 280 studies ...

New research challenges the one-level view of evolution, showing natural selection works on individuals and groups together.

The common view of natural selection is based solely on the individual: A trait allows an organism to out-compete its rivals and is thus passed down to its offspring. To suggest otherwise can provoke ...

A study reveals that sticklebacks with complete bony plates have survival rates several percentage points higher than those with reduced plates, indicating ongoing natural selection. Moreover, the ...