June 20, 2014 — Fish use their watery voices to relay distress, find prey, defend their nests, and attract mates but the sounds they make also help marine crabs to hide from predators. Researchers have found that marine crabs too have the capability to hear.
The auditory ability of marine crabs plays an important role in their response to fish predators, the findings showed.
"We showed that these crabs change their behaviour in response to acoustic signals," said Randall Hughes, assistant professor of marine and environmental sciences at Northeastern University in the US.
In the first step of the experiment, the researchers looked at whether mud crabs respond to fish sounds.
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