To hear a bat is to know one. So researchers compiled a massive playlist of bat sounds.

If you’re looking for bats, sometimes the best way to spot them is to listen.

The elusive mammals fly by night and mainly “see” the world through sound, using echolocation to find food and to navigate. For scientists wishing to study bats, these ultrasonic calls can be the giveaway to their presence.

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via L.A. Times - Science http://ift.tt/1U1gyQB