Although known as "killer whales," orcas are actually the largest ... these three orca groups share few behavioral adaptations. A little known fourth group, the offshores, also shares some of ...

Killer whales are the only natural predator of baleen ... but research into acoustics is shedding new insights into adaptations of baleen whales. Could this so-called acoustic crypsis, where ...

Killer whales can feed on marine mammals ... to these orcas helps researchers gain a greater understanding of their adaptations unique to their needs and geographical location.

A rare sighting of critically endangered southern resident killer whales off the Oregon coast offers a glimpse of a ...