Indo-Pacific Humpback Dolphin
Has a streamlined body with a long, slender beak and a distinct hump at the base of the dorsal fin. Is colored dark gray on the back and lighter underneath; white and pink variations are possible. Every population differs in shape and color.
Have been seen to breach, lobtail and somersault, but are not known to bow-ride. Sometimes they swim on the side. They are highly vocal with whistles and screams of varying tones and lengths.
South Africa to South China Sea; preference for nearshore waters
Varies with population: There is a seasonal inshore-offshore and longshore movement in South Africa with a high level of seasonal migration into Algoa Bay region. They are resident in southern China and northern Queensland waters.
Social system/Group size
South Africa and northern Indian Ocean: groups of 1 - 10; southern China: groups of 3 - 5; may associate with bottlenose dolphins.
Entanglement in fishing gear and anti-shark nets and habitat degradation due to urban, industrial and agricultural development are known to have caused several deaths.
The famous "pink dolphins" of Hong Kong bay are Indo-Pacific humpback dolphins.