Switching senses: Biologists find that leeches shift the way they locate prey in adulthood

(PhysOrg.com) -- Many meat-eating animals have unique ways of hunting down a meal using their senses. To find a tasty treat, bats use echolocation, snakes rely on infrared vision, and owls take advantage of the concave feathers on their faces, the better to help them hear possible prey. Leeches have not just one but two distinct ways of detecting dinner and, according to new findings from biologists at the California Institute of Technology (Caltech), their preferred method changes as they age.

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