Researchers come 'eye-to-eye with a killer whale' during their Antarctic expedition.

A team of people in a small zodiac boat in the Antarctic Ocean found themselves surrounded by killer whales. Watch them 'spy ...

Scientists found evidence that killer whales may hunt and eat other killer whales, revealing new insights into how ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...