During a Manta Ray Night Dive off the Kona Coast, Hawaii a Bottlenose Dolphin swam up to one of the divers and showed him his entanglement by fishing line. Watch how the dolphin consciously seeks out the help of the diver.
More on dolphin language. The well-known Denise Herzing has given a TED Talk about the language abilities of dolphins. In her session titled “Do they have a language? If so, what are they talking about?” she shared her research in communicating with dolphins.
Read this TED blog post about the development of a wearable keyboard to communicate with the dolphins. Visit her website to find more information about her work.