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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A pod of bottlenose dolphins (Tursiops truncatus) swimming at the Las Cuevitas dive site in the Revillagigedo Archipelago. We ...

Toothed whales use sound to find their way around, detect objects, and catch fish. They can investigate their environment by making clicking sounds, and then decoding the "echoic return signal" ...

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.