Barking Piranhas! Scientists Explain Sounds Of Flesh-Eating Fish (VIDEO) (http://www.huffingtonpost.com/2011/10/14/barking-piranhas-red-bellied_n_1009679.html)Scientists have known that piranhas, the sharp-toothed meat-eaters which Theodore Roosevelt called "the most ferocious fish in the world," produced sound, but they never knew what those sounds meant -- until now.
Sandie Millot, Pierre Vandewalle and Eric Parmentier from the University of Liège in Belgium set out to decipher the bark of the omnivorous red-bellied piranha.
Read complete story on Huffington Post (http://www.huffingtonpost.com/2011/10/14/barking-piranhas-red-bellied_n_1009679.html).