Why Amazon River Dophin is pink?

     The Amazon river dolphin, commonly known as the pink river dolphin or boto, only lives in freshwater. It is distributed over a large portion of Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela's Amazon and Orinoco river basins. With a population estimated in the tens of thousands, it is a rather common river mammal.  However, it is classed as vulnerable in some locations due to dams that separate and threaten some populations, as well as other risks such as river and lake contamination.

    The Amazon River dolphin averages about 6.5 feet in length. They come in all shades of pink, from a dull gray-pink, to rosy colored pink, to a bright pink like that of the flamingo. 

    The dolphin's colour varies because of the cleanliness of the water it lives in; the darker the water, the pinker the dolphin.The Amazon pink river dolphin is obviously famous for its pink color. But, many don’t know that it also comes in a variety of other shades. The dolphins actually start off gray when they are young, and slowly turn pink as they get older. Their final color can be influenced by their behavior, diet, capillary placement, and exposure to sunlight. Dolphins lose their pink pigmentation due to sun exposure. The bright colour of the dolphin is shielded by murky water.  when the dolphin gets excited, they can flush bright pink.

    Dophins are some of the most loved marine animals in the world, though most people are only familiar with dolphin species that live in the ocean. To protect these precious animals so our offsprings can see these precious animals with their own eyes, we need to maintain their shelter by reduce the pollution.