"It seems highly likely that sponging is culturally transmitted mainly within a matriline, ie, daughters learn this behaviour from their mothers," reports lead author Dr Michael Krützen, who did the work while studying for his PhD at Australia's University of New South Wales.
Male dolphins have the same opportunity as their sisters to learn the trick, but apparently have better things to do, he suggests.
BWA HA HA Get the fucking nets....
i summon.... The Spirit
Don't let me down, baby!