The pink dolphin / Inia geoffrencis is the biggest species of river dolphin and reaches 2.5 meters in length and weighs up to 185 kg. It can live up to 30 years. Although they are often solitary, it is possible to find mothers together with their offspring.
Pregnancy lasts 11 months and the mothers take care of their offspring for the first two years. They usually move up to 20 km. per day at a speed of 6 km/h, and if needed they can swim as fast as 22 km/h. Its diet includes 50 species of fish, in particular piranhas that have a high protein value, they eat more or less 3 kg of fish per day.
Its coloration is usually grey but occasionally they can turn completely pink due to their cooling system that activates when they very active fishing, playing or mating. It lowers the temperature of its body by sending blood closer to the water by the veins located near its skin.
