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They constantly emit sound waves and allow those sound waves
to bounce off of trees and insects, and then they
listen for those reflections and they use that to
navigate in the night
to bounce off of trees and insects, and then they
listen for those reflections and they use that to
navigate in the night
Full Transcript
00:00:01.000 --> 00:00:03.625
They constantly emit sound waves
00:00:03.625 --> 00:00:07.042
and allow those sound waves
to bounce off of trees
00:00:07.042 --> 00:00:10.167
and insects, and then they
listen for those reflections
00:00:10.167 --> 00:00:13.000
and they use that to
navigate in the night.
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Movie Summary
Discover history's most mysterious and bizarre inventions, people and things. From a 440-pound Syrian bear turned soldier to a man who survived a 43-inch iron bar shot through the head.