Wednesday, 16 July 2014

Whoa! Seahorses Don't Neigh — They Growl

By Stephanie Pappas, Live Science Contributor | July 09, 2014 01:19pm ET

Dogs and bears aren't the onlyanimals that give off warning growls. Seahorses do too.

For the first time, researchers have recorded seahorses growling, a tiny, deep sound not easily detectable by the human ear. These distinctive little fishes growl in response to stress, specifically the stress of being captured and handled, according to a new study published onlineJune 26 in the Journal of Zoology.

Researchers and aquarium enthusiasts have long known that seahorses often vibrate angrily when handled, said study researcher Tacyana Oliveira, a scientist at Universidade Estadual da Paraíba, in Brazil. [Listen to the Seahorse Growls and Grunts]

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