Bats slam into buildings because they can't 'see' them. Smooth, vertical structures such as steel and glass buildings appear invisible to bats' echolocation system by reflecting sound away from the creatures, finds new study in Science.

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Bats slam into buildings because they can't 'see' them. Smooth, vertical structures such as steel and glass buildings appear invisible to bats' echolocation system by reflecting sound away from the creatures, finds new study in Science.