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Look at mom, no ears!Little spider hears organs on legs



The spiders facing the ogres hang down from their webs, like gymnasts, they flip back to catch insects in the air. A new study found that in order to hear the arrival of prey, spiders use their special organs to “sniff” the flaps of tiny wings.

The organs look like parallel slits cut in the spider’s exoskeleton.Located near the tip of each leg, the size of each slit is between 0.0000003 and 0.000007 inches (10-200 nm) long. These tiny gaps contain nerve cells, which can detect small pressure changes caused by sound waves rippling in the air. The organ then sends this information to the brain.


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