Irrawaddy dolphin

Have a preference for slower-moving or still waters, making them well-suited to environments like rivers and deltas

Stefan Brending

It is found in various freshwater and brackish habitats in Southeast and South Asia. Known for its distinctive appearance, this dolphin has a rounded forehead and lacks a prominent beak, giving it a distinctively “smiling” expression. Irrawaddy dolphins are typically gray and can have a light belly. They have a stocky build and a dorsal fin that is relatively small compared to other dolphin species. Unlike oceanic dolphins, Irrawaddy dolphins are known to have a more reclusive behavior, often surfacing in a manner that resembles “spouting” water.

Irrawaddy dolphins are known for their cooperative fishing behavior, where they work together with local fishermen. This unique collaboration involves the dolphins herding fish towards the fishermen’s nets, and in return, the fishermen share some of their catch with the dolphins.

Distribution

Country
Population est.
Status
Year
Comments
Indian ocean
2017
Pacific ocean
2017
Bangladesh
2017
Brunei
2017
Cambodia
2017
India
2017
Indonesia
2017
Laos
2017
Malaysia
2017
Myanmar
2017
Philippines
2017
Singapore
2017
Thailand
2017
Vietnam
2017

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Terrestrial / Aquatic

Altricial / Precocial

Polygamous / Monogamous

Dimorphic (size) / Monomorphic

Active: Diurnal / Nocturnal

Social behavior: Solitary / Pack / Herd / Pod

Diet: Carnivore / Herbivore / Omnivore / Piscivorous / Insectivore

Migratory: Yes / No

Domesticated: Yes / No

Dangerous: Yes / No