Video: Blind mouse navigates like a bat

Science | AAAS | 1/10/2017 | Staff
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The Vietnamese pygmy dormouse is as blind as a bat—and it navigates just like one, too. Scientists have found that the small, nimble brown rodent (Typhlomys cinereus chapensis), native to Vietnam and parts of China, uses sound waves to get a grip on its environment. Measurements of the mice in the Moscow Zoo revealed that the species can't see objects because of a folded retina and a low number of neurons capable of collecting visual information, among other things. When researchers recorded the animals, they discovered they make ultrasonic noises similar to those used by some bat species, and videos showed they made the sounds at a much greater pulse rate when moving than while resting. These sound waves bounce...
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