River Dolphin

River dolphins are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or brackish water. They are an informal grouping of dolphins, which itself is a paraphyletic group within the infraorder Cetacea. Extant river dolphins are placed in two superfamilies, Platanistoidea and Inioidea.

Biome/Spawn
The Amazon River Dolphin (Inia geoffrensis) is pinkish and spawn on Rivers and are kinda Rare; 12% chance (1 creature).

Behavior
River Dolphins will attack Tropical Fish packs. They also attack players if hurt by them.

Features
Cousin of the sea dolphins, they are a little more wild but still quite friendly to humans; they will let the player take 'hikes' on their backs (rideable). Players can Breed it using Tropical Fish Buckets.