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10 animals with unusual color mutations

By: Bryan Nelson on Aug. 11, 2016, 10:23 a.m.
pink dolphin

Photo: pruit phatsrivong/Shutterstock

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Pink dolphin

Dolphins with a pinkish hue are a relatively common sight throughout the Amazon basin. These clever carnation cetaceans are the largest freshwater dolphins in the world, and their pink coloration comes from blood vessels that are located unusually close to the skin. Individuals will vary in color from pink to gray to black and white.