Some species of moth can produce ultrasonic emissions that confuse echolocating bats, and they do it by rubbing their sex organs together.
An international team of researchers have finally discovered the source of a weird, low-frequency rhythmic sound that has puzzled scientists and submarine sonar operators for more than half a century. Listen to it.
Space may be the final frontier of exploration, but there’s plenty of Earth left unmapped too — from the giant canyon recently discovered beneath Greenland to American waters that have been left largely unexplored. But that’s quickly changing, thanks in part to Bob Ballard’s latest project.