News Animals Sponge Moms: Dolphins learn tool use from their mothers Share this:FacebookTwitterPocketRedditPrintEmail By Susan Milius June 8, 2005 at 11:47 am This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe