When bats can't hear, new research finds that these hearing-dependent animals employ a remarkable compensation strategy.
When bats can't hear, new research finds that these hearing-dependent animals employ a remarkable compensation strategy.
All animals adapt in various ways as a response to sensory deprivation. People at a loud bar, might lean in to better hear what someone is saying. A dog might tilt its head toward a muted sound. With their hearing blocked, bats were able to navigate the course surprisingly well, even on the first try. They weren't as agile and ran into things, but every tested bat compensated immediately and effectively.The bats changed their flight path and vocalizations. They flew lower, oriented themselves along walls and increased both the number and length of their calls, which boosted the power of echo signals they use for navigation.
"It highlights how robust the brain is to manipulation and external noise," said co-author Jennifer Lawlor, a postdoctoral fellow at Johns Hopkins. Authors include Kathryne Allen, Grace Capshaw, Megan G. Humphrey, Diego Cintron-De Leon and Kishore V. Kuchibhotla, all of Johns Hopkins.Clarice A. Diebold, Jennifer Lawlor, Kathryne Allen, Grace Capshaw, Megan G. Humphrey, Diego Cintron-De Leon, Kishore V. Kuchibhotla, Cynthia F. Moss.We humans do better on land than under water -- also when it comes to our hearing. But now a new study shows that we actually have better underwater hearing than previously thought -- at certain ...
Extreme Survival Behavioral Science New Species Animal Learning And Intelligence Mammals Biology Mice
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