Illustration of predators and prey in the Everglades ecosystem. The Everglades is a tropical wetland ecosystem found only in southern Florida, USA. At lower left leeches are sucking blood from an alligator, while at centre another alligator feeds on fish. To its right fish feed on algae. At centre left and right wading birds feed on snails and fish. At left a moth hummingbird feeds on nectar from an orchid.