echolocation echolocation

A new study suggests Risso's dolphins, which are common along the U.S. Pacific Coast, use past experiences to plan their dives for food. Elizabeth Haslam/Flickr hide caption

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Elizabeth Haslam/Flickr

Risso's Dolphin Group

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Echolocation is second nature to animals such as bats and dolphins. Can humans also find their way using sound as a tool? Ian Waldie/Getty Images hide caption

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Ian Waldie/Getty Images