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The oyster toadfish (Opsanus tau) lives in the northwest Atlantic from Massachusetts to as far south as Florida. Its mottled coloring provides camouflage that allows it to lie in wait and ambush prey, which include crabs, shrimp, squid, and small fish.��Both sexes can produce short grunts; however, male toadfish emit longer duration “boatwhistles” to acoustically attract females to the nest site. Toadfish produce these sounds by vibrating special sonic muscles next to their swim bladders 200 times per second. Researchers at the ǧ����Ƶ are particularly interested in that muscle, which is the fastest ever recorded in a vertebrate. Toadfish are also useful for inner-ear research as their broad, flat heads allow access to the otolith organs, which are used for equilibrium and balance as well as hearing.��

Fun Facts:

• Male toadfish will “sing” to find a mate, although their song is mostly a series of grunts. The male call is termed a “boatwhistle.”
• Their jaws are powerful enough to eat oysters and crabs.
• In 1998, two toadfish from Woods Hole went into space with John Glenn to study the effects of microgravity on the vestibular system.