Jumping spiders & Sound

Jumping spiders have great hearing.

Even though they don’t possess ears or ear drums, jumping spiders have great hearing. Sensory hairs along their bodies take in the vibration of sound waves, an action that sends signals to the spiders' tiny brains.

Further study showed that the jumping spiders’ hearing is most sensitive to frequencies that would enable them to hear the wingbeats of their parasitoid wasp enemies. Behavioral experiments have shown that jumping spiders respond to such sounds by freezing — a common startle response.