São Paulo Aquarium was opened in 2006, and since then, is considered the largest aquarium in Brazil, the only theme and a reference in animal treatments. Its area of 15 thousand m² is divided by the sectors of Água Doce, which presents species of Brazilian forests, the Oceanarium, which allows to contemplate a 180º view of sharks, Pinguinário, Aquatic Mammals, where attention is reserved for Amazon manatee, endangered species, and the new wing, which opened in 2015, features animals from Africa, Indonesia, Australia and the North Pole. The couple of polar bears, the couple of koalas and the birth of a koala baby in 2018, among others, stand out. Ludicity is due to the attraction of mermaids and environmental education strengthened by communication and monitoring. It is worth mentioning that the Sáo Paulo Aquarium supports important environmental causes, such as reintroduction of oxen in the Amazon.