Larger mammals include carnivores pumas, jaguars, ocelots, rare bush dogs, and foxes, and herbivores peccaries, tapirs, anteaters, sloths, opossums, and armadillos. Deer are plentiful in the south, and many species of New World monkeys are found in the northern rain forests. Concern for the environment has grown in response to global interest in environmental issues. Brazil's Amazon Basin is home to an extremely diverse array of fish species, including the red-bellied piranha.