Kate Rodriguez-Clark is an animal matchmaking guru. Among her responsibilities as a population ecologist for the Smithsonian, ...

German pig skulls changed significantly due to selective breeding. Scientists found shorter snouts and flatter foreheads in ...

A species is a group of organisms that interbreed to produce fertile offspring. Selective breeding is when organisms are deliberately bred so their offspring have the desirable characteristics.

Objective: reproduction. Global networks of captive-breeding programs share and pair animals, hoping to replenish at-risk species and foster genetic diversity. When Sundar and Khusi came from ...