Jaú National Park
The park is a good example of tropical rainforest conservation in the Amazon. Its  forests, lakes and channels are a "constantly evolving aquatic mosaic that is home to the largest array of electric fish in the world". The site protects key threatened species, including giant arapaima fish, the Amazonian manatee, the black caiman and two species of river dolphin and the jaguar. There are many other species of animals and plants.