dolphins

A team of researchers from Spain has shown that human beings can develop echolocation, the system of acoustic signals used by dolphins and bats to explore their surroundings. Producing certain kinds of tongue clicks helps people to identify objects around them without needing to see them, something which would be especially useful for the blind.

"In certain circumstances, we humans could rival bats in our echolocation or biosonar capacity", said researcher Juan Antonio Martínez.