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.
Interesting facts about Pink Amazon River Dolphin
The Ghost of the Ganges. Interesting video that talks about the Ganges River Dolphin and its lifestyle.
Amazon Pink Dolphin Calf in captivity
Amazon River Dolphin in a tank of the Zoo Aquarium