While juvenile blue whales are at high risk of attacks, killer whales have also been documented as having killed full-grown blue whales. Orcas hunt in groups, and are capable of launching ...

New findings suggest the evolution and behavior of at least some baleen whales has been significantly shaped by fear of orca attack.

They include blue, sei, fin, minke and Bryde’s whales ... “But these super loud songs could expose them and their mates to killer whale attack,” Branch said in the release.