Scientists agree dolphins have a complex language. Why can't we
Whales Smithsonian Ocean
Sponging dolphins keep it in the family
Dolphins Are So Smart They're Learning Tool-Use From Their Friends
Dolphins are learning fish-catching trick from peers, not mothers
Pesky Remoras - Wild Dolphin Project
Moby Dolphin' with stunning ghost-white skin caught on camera
10 Ways Dolphins Show They Have a Darker Side - Listverse
Do you think that dolphins learn foraging skills from peers? - Quora