Imagine searching for a gemstone in a dark cave: You use a flashlight, looking for a rainbow-colored glint in the darkness.
A new study reveals greater Japanese horseshoe bats align echolocation frequencies to avoid interference and share silent spectral windows.
Yet, they have retained a functional vision for light in the spectrum visible to humans. Scientists have now used miniature light, ultrasound and motion sensors to show that common noctule bats emit ...
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