KNOXVILLE, Tenn., Dec. 5 (UPI) -- Crocodiles are cleverer than previously thought, a U.S researcher says after observing two species of crocodiles using lures to attract their prey.
Vladimir Dinets of the University of Tennessee, Knoxville, writing in the journal Ethology, Ecology and Evolution, reported observations of the species -- mugger crocodiles and American alligators -- using twigs and sticks to lure birds, particularly during nest-building time.