Tag Archives: human ear

Blind Cavefish Use Teeth to Find Their Way, New UMD Research Shows

COLLEGE PARK, Md. — In a single cave in Ecuador, a species of cavefish has evolved to do something perhaps unique to them, navigate with their teeth.

The sensory use of these teeth, which are not in their mouths, but protrude from their skin, appears to be a previously unknown evolutionary phenomenon, one that may not exist anywhere outside this one cave, say researchers at the University of Maryland, National Institutes of Health and Pontificia Universidad Católica del Ecuador who brought to light this fascinating new adaptation to life in dark, swiftly flowing waters. (more…)

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Squid Studies Provide Valuable Insights Into Hearing Mechanisms

The ordinary squid, Loligo pealii—best known until now as a kind of floating buffet for just about any fish in the sea—may be on the verge of becoming a scientific superstar, providing clues about the origin and evolution of the sense of hearing.

In a hangar-like research building at the Woods Hole Oceanographic Institution (WHOI), biologist T. Aran Mooney is exploring virtually uncharted waters: Can squid hear? Is their hearing sensitive enough to hear approaching predators? How do squid and other marine species rely on sound to interact, migrate, and communicate? Will the burgeoning cacophony of sound in the ocean disrupt marine life’s behavior and threaten their survival? (more…)

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