The dusky dolphin is limited to the south of the planet including the tip of the American continent, New Zealand and some southern islands.
Dolphins are not frequent victims of any predator in the ocean due to their sociability and intelligence, but killer whales and some large sharks are their main natural threat.
Risso’s Dolphins Having Fun. Dolphins perform jumps out of water!
There is an ongoing debate about why dolphins jump out of the water. Scientists think about different reasons of this behavior.
There is not a single scientific answer about why dolphins jump in the air.