Echo finders

BBC Wildlife Magazine - - Wild February -

What? Fruit bats do echolo­cate af­ter all.

A new study of fruit bats over­turns the con­ven­tional wis­dom that only their smaller, in­sec­tiv­o­rous cousins nav­i­gate by echolo­ca­tion. Two fruit bat species have been found to nav­i­gate in the dark by pro­duc­ing clicks and mon­i­tor­ing their echoes. Strangely, th­ese sounds are not vo­cal­i­sa­tions, but are pro­duced in­stead by the wings – though it’s not yet known quite how. This rudi­men­tary sonar might shed light on the early evo­lu­tion of more so­phis­ti­cated forms of echolo­ca­tion.

SOURCE Cur­rent Bi­ol­ogy LINK http://bit.ly/12Mo9PP

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