The Irrawaddy river dolphin (Orcaella brevirostris) is an oceanic dolphin as it has a mixed distribution reaching part of the ocean and venturing into the river of the same name.
La Plata dolphin (Pontoporia blainvillei) it is a small dolphin that has one of the longest snout-body length ratios. While it is a river dolphin, it also reaches several parts of the ocean.
Most dolphins live in the ocean, but there are a few species that live in freshwater rivers. The habitat of dolphins varies according to environmental factors and food accessibility.
The Amazon River Dolphin (Inia geoffrensis) also known as Boto is the largest species of dolphins that inhabit freshwater.
There are only four species of dolphins that are able to thrive in freshwater and the Amazon River Dolphin is one of them. Many people assume that all dolphins live in saltwater so this is interesting to learn if you weren’t aware of it.