Scientists have long known that bats use sound to locate objects, by listening for the echo of their own high-pitched calls. New research shows that the squeaks also help the bats analyze a scene and remember terrain. These findings may lead to the development of new devices to help the blind.
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Oops! You're right, Brian. Australopithecus afarensis is more closely related to us. A. africanus...
this is a very interesting article.
its fluffy
Hi, Katie.
This year, the Mississippi River here at downtown St. Paul is predicted to crest at 19....
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