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