It turns out that squids can hear. But do they listen?  A recent
study found that squids can detect low-frequency sounds, using
sac-like organs at the base of their brains.  By , Senior
LiveScience Writer    • close     Scientists have confirmed that
squids are capable of detecting sound, although their mechanism
for doing so is very different from our own.     View Caption
Squid can hear, scientists have confirmed. But they don't detect
the changes in pressure associated with sound waves, like we do.
They have another, more primitive, technique for listening: They
sense the motion generated by sound waves.  "They are detecting
themselves moving back and forth with the sound wave," said T.
Aran Mooney, a marine biologist at the Woods Hole Oceanographic
Institution in Massachusetts. He compared a squid in the ocean
being jostled by a sound wave to a piece of fruit suspended in
Jell-O. "If you jiggle the Jell-O, the whole block of Jell-O is
moving with the fruit."  In a study published in October in the
The Jo