a caiman lurking at the river's edge in the amazonian rainforest

caiman cayman alligatorid caimaninae alligatoridae family alligators marshes swamps mangrove rivers scaly crocodilians ecuador amazon amazonian cuyabeno reserve region north east aguarico miguel water species jungle rainforest rain nature ecosystem fauna environment aquatic carnivore wildlife wilderness animal wild river alligator predator crocodile reptile tropical conservation danger swamp carnivorous skin murky