Creature Feature #589: Pink River dolphin

The Pink River Dolphin makes her home in the Amazon river. She is the largest freshwater cetacean, growing longer than a human - up to 2.4 m. Her neck vertebrae are unfused, allowing her to turn her neck 90 degrees - a necessity for navigating flooded forests. She dines on crustaceans and fish (including piranha), and will co-operatively hunt to herd fish onto the river bank, where it is easier to catch. Adult males have been seen carrying around sticks, balls of hardened clay or other objects, in their mouths. The exact reason for this is unknown, but it is thought to be related to courtship.