The Ganges river dolphin has a rectangular, ridgelike dorsal fin and females tend to be larger than males. Ganges river dolphins usually are tan, chocolate brown, dark grey or light blue. They have an elongated, … See more

The Ganges river dolphin split from the Indus river dolphin during the Pleistocene, around 550,000 years ago. The earliest fossil identified as belonging to the species is only 12,000 years old.
The Gange… See more

The species has multiple common names throughout its range. It is known as susu as a popular name, soons, soans, or soos in Hindi, shushuk in Bengali, hiho or hihu in Assamese, bhagirath (as a reference to the character o… See more

It lives along the Ganges-Brahmaputra-Meghna and Karnaphuli-Sangu river systems of Bangladesh and India, and the Sapta Koshi and Karnali Rivers in Nepal. The Ganges river dolphin favours deep pools, edd… See more

The Ganges river dolphins usually swim alone or in pairs, they are known to breach rarely and are shy around boats and therefore difficult to observe..
This species shows object-avoidance behavior in … See more