Indo-Pacific humpback dolphin

Sousa chinensis

Local name - Golapi



Indo-Pacific hump-backed dolphins have a 2.5 - 3 m long body and well-defined beak. The dorsal fin sits on a hump in the middle of the animal's back. The local name indicates its most apparent characteristic. Calves are dark gray; the animals turn light cream-colored or pink with increasing age.


Although groups of humpback dolphins generally contain fewer than 10 individuals, in Bangladesh groups of up to 40 individuals have been repeatedly observed. Some subpopulations are threatened by bycatch and habitat loss.


Recent photographs of the species in Bangladesh reveal that individual dolphins can be identified from visible marks. This finding opens up new possibilities for understanding these animals in our waters.