Dolphins learn to use tools

Anyone remember what the name of the organization was in Douglas Adams' Hitchhiker's Guide to the Galaxy series that advocated for intelligent creatures that don't have hands?

A group of dolphins living off the coast of Australia apparently teach their offspring to protect their snouts with sponges while foraging for food in the sea floor. ...
"Cultural evolution, including tool use, is not only found in humans and our closest relatives, the primates, but also in animals that are evolutionally quite distant from us. This convergent evolution is what is so fascinating," said ... Michael Kruetzen, lead author of a report on the dolphins in Tuesday's issue of Proceedings of the National Academy of Science.

I don't know if I'm more impressed at the tool-use, or the teaching.