Bats adjust squeaks to focus sonar

Human eyes, set as they are in front-facing sockets, give us a limited angle of view: we see what is directly in front of us, with only a few degrees of peripheral vision. But bats can broaden and narrow their ‘visual field’ by modulating the frequency of the squeaks they use to navigate and find prey, researchers in Denmark suggest today in Nature.

[Read more at Nature //November 21, 2012]

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