Amazon river dolphin

Pink, blue or albino, the Amazon river dolphin is the most distinctive of the five river dolphins. It has a ridge along its back rather than a dorsal fin and its fat, heavy body is surprisingly flexible. Paddle-like flippers which move in a circular motion provide exceptional manoeuvrability, making up for a lack of speed. The and Orinoco river basins provide all the food in its highly diverse diet, including at least 40 different species of . It relies on to find prey in the muddy waters. Males can reach two and a half metres in length, making them the largest of the river dolphins. This is unusual as in the other four species, the females are the . Amazon river dolphins have few natural , but , anacondas and have been known to take them.

Source: http://www.bbc.co.uk/nature/life/Amazon_river_dolphin

bbc news radio bbc news online bbc news bbc middle east bbc latest news bbc world news