South African Dusky Dolphin
Is grey or black with a distinctive two toned dorsal fin.
South America, southwestern Africa, New Zealand and various oceanic islands with some sightings around southern Australia and Tasmania
Other dolphins, sharks and pinnipeds.
There a suggestions of inward and northward summer movement.
Social system/Group size
A fisson-fusion society. They live in large groups with small sub-groups according to age.
Entanglement in fishing gear and anti-shark nets.
The Dolphin Reseach Center monitors the species.
They show a variety of leaps, backslaps, tailslaps, and spins.