Over time, that name morphed into "killer ... the largest members of the dolphin family. Males are bigger than females, but they both vary in size and weight. The largest orca ever recorded ...

a study finds Orcas — also known as killer whales — are once again on the offensive. Their new target is whale sharks, the world's largest fish species. According to CNN, a new study ...

Killer whales are known for being intelligent, which makes them powerful hunters. Now, new research shows how they take down one of the planet's largest ... authoritative record of NPR’s ...