Analysis of bats’ inner ear anatomy sheds light on the evolution of echolocation
Echolocating animals, including most species of bat and echolocators such as dolphins, obtain information about their surroundings from the differences between outgoing signals that they emit and the echoes returning to them. Some blind people orient by echolocation using tongue clicks.
Signals emitted by animals for echolocation can be used for orientation and communication, and the ability to echolocate allows animals to operate in the dark or under conditions of unpredictable lighting. Echolocation also provides evidence of bats’ evolutionary history, as portrayed by their family tree.
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