Add Yahoo as a preferred source to see more of our stories on Google. Researchers discovered that Northern resident killer whales hunt by going silent and eavesdropping on dolphin echolocation to ...

When researchers from the University of British Columbia set out to film the solitary hunting habits of Northern resident killer whales, they expected to see quiet and solitary predators at work.

Researchers discovered that Northern resident killer whales hunt by going silent and eavesdropping on dolphin echolocation to locate prey. Dolphins act as long-range scouts while orcas deliver the ...