Head to head
Ganges River Dolphin vs Indus River Dolphin
The Ganges river dolphin and Indus river dolphin are close relatives, sometimes considered subspecies of one another, sharing the same extraordinary blindness but facing somewhat different versions of the same modern river crisis.
| Ganges River Dolphin | Indus River Dolphin | |
|---|---|---|
| Scientific name | Platanista gangetica | Platanista minor |
| River system | Ganges, Brahmaputra, and tributaries | Indus River system |
| Main threat | Dams, pollution, heavy boat traffic | Fragmentation by irrigation barrages |
| Range continuity | Largely connected, though degraded | Fragmented into isolated stretches |
| Population trend | Decreasing | Increasing |
| Functionally blind | Yes | Yes |
| Conservation status | Endangered | Endangered |
| Diet | Carnivore | Carnivore |
Ganges River Dolphin vs Indus River Dolphin: common questions
Are the Ganges river dolphin and Indus river dolphin the same species?
They are extremely closely related and sometimes considered subspecies of the same overall species, separated primarily by the different river systems each inhabits, the Ganges and Brahmaputra for one and the Indus for the other, rather than by dramatic physical differences between them.
Why has the Indus river dolphin become so fragmented?
A series of irrigation barrages built along the Indus River system has isolated this species into separate stretches of river, restricting movement and gene flow between subpopulations, a fragmentation problem the Ganges river dolphin does not face to the same degree across its more continuous, if still heavily used, river range.
Which of these two river dolphins is doing better right now?
The Indus river dolphin is currently showing an increasing population trend thanks to dedicated conservation efforts in Pakistan, while the Ganges river dolphin continues to show a decreasing trend linked to the intense dam construction, pollution, and boat traffic present across its more heavily used river systems.