ABC News in Science: Female dolphins that "hang-out" with other mums are themselves more successful as mothers according to an international team of behavioural scientists.

http://www.abc.net.au/science/articles/2010/11/02/3053831.htm

The Science Show 6 November 2010

Excerpt: If you're in your 30s or 40s, you'll probably remember Flipper, a bottlenose dolphin, the star of a TV series created in the '60s.

http://www.abc.net.au/rn/scienceshow/stories/2010/3058415.htm