A group of treehoppers sit on a plant stem in University of Missouri Professor Rex Cocroft's lab. Humans can't hear the vibrations these insects use to communicate with, but Cocroft has been able to ...
YourTango: Revolutionizing Relationships on MSN
Only 2% of people can hear this mysterious sound - scientists still can't explain it
A small slice of the population hears a strange low-frequency sound that most people can't detect at all. The mystery has ...
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