Which dolphin species is known for its pink color in the Amazon River?

Which dolphin species is known for its pink color in the Amazon River? The Amazon river dolphin is the answer.

Also called the boto or pink river dolphin, the Amazon river dolphin (*Inia geoffrensis*) lives in the freshwater systems of the Amazon and Orinoco basins. Adults can develop a pink coloration, especially males. Young dolphins are generally dark gray, then become lighter and often pinker with age.

The color is associated with repeated skin abrasion and scar tissue, and males often have more scars because of aggressive encounters with other males. Pinkness varies between individuals and may also be influenced by factors such as water conditions, temperature, and location. The species is not uniformly bright pink; many adults are mottled gray and pink.

This dolphin is highly specialized for flooded forests and muddy rivers. Its unfused neck vertebrae allow it to turn its head sharply, while large flippers and a long dorsal fin help it maneuver among submerged trees. It uses echolocation to find fish, turtles, frogs, and crustaceans in murky water. The species is endangered, facing threats from fishing, dams, pollution, and habitat loss.