Pink River Dolphins

So normally I talk about marine biology news.  This time, however, I feel like talking about marine biology.  So I'm going to talk about pink dolphins.  The Amazon River Dolphin is the largest river dolphin, reaching lengths of 1.7-3.0 meters.  It is a native of South America, and can range from being a vivid pink (for older, larger individuals) to a blue-gray or beige.  Unlike other dolphins, the Amazon River Dolphin has a flexible neck and a hump with a ridge instead of a dorsal fin.  These dolphins have very poor eyesight, have been known to swim upside down, and use echolocation to find prey.  The Amazon River Dolphin lives probably around 30 years, lives in the Amazon Basin and Orinoco, and has been known to (during flood season) explore the jungle (an adventure which could leave the dolphin stranded.  I find this creature extremely fascinating.  Aside from its obvious differences from dolphins, the slight adaptive abilities (like very strong echolocation) have molded this creature to be extremely unique.  Also, I am extremely interested in finding out why the dolphin's pink color is permitted to develop (the color is obtained due to the dolphin's diet) as it would seem to be an evolutionary disadvantage.  Anyway, I find this creature fascinating, and just wanted to share a bit about it with the world