When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males ...

, March 10 -- Scientists have found possible evidence suggesting that some killer whales may hunt and eat their own species in waters near Russia.

Gold Shaw Farm explores the biological realities and genetic barriers of waterfowl to answer whether ducks and geese can actually interbreed.

Two severed fins bearing the tooth marks of other killer whales have raised a troubling question: are some orcas hunting ...

A grueling road trip led to an extraordinary experiment at UConn's Rankin Seawater lab that discovered how inverted ...