http://www.rainforest-alliance.org/kids/species-profiles/river-dolphin
http://en.wikipedia.org/wiki/Amazon_river_dolphin
http://www.konicaminolta.com/kids/endangered_animals
http://news.nationalgeographic.com
http://oceana.org/en/explore/marine-wildlife/leaf-scaled-sea-snake#
http://worldwildlife.org/species/giant-tortoise
http://www.earthsendangered.com/profile-479.html