"Sponging" dolphin mothers teach the trick to daughters

10/16/2012 | Reuters

Female dolphins who use sponges to catch fish in Western Australia pass the rare hunting trick to their daughters, according to a study by University of New South Wales researchers. Dolphins hold sponges in their snouts to protect themselves while capturing crustaceans and fish. "What's unique about the sponging behavior is that only about 5% of dolphins use the sponges as a tool, and it's only one maternal line," said Anna Kopps at the University of New South Wales Evolution Ecologist Research Centre.

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