World's largest alligator

Black Caiman is both the world's largest alligator and the Amazon Basin's largest predator. The black caiman has a bony ridge over red eyes, and black, scaly skin. The skin coloration helps with camouflage during its nocturnal hunts, but may also help absorb heat. The black caiman can grow to 5 m (16.5 ft) long, making it the largest member of the Alligator family and the largest predator in the Amazon basin. The largest reported black caiman, measuring 7.7 meters (25.2 ft) and weighing 1,310 kg (2,870 lb), was shot in Acre, Brazil in 1965 and, which if accurate, would count as the largest crocodilian recorded besides saltwater crocodiles. They eat fish, including piranhas, catfish, and other animals, including birds, turtles, and land-dwelling animals like the capybara and deer when they come to the water to get a drink. Larger specimens can take tapirs, and sometimes anacondas and jaguars. Conversely, jaguars may prey on caimans and these two large predators are each likely to avoid large adults of the other species. Their teeth are designed to grab but not rip, so they swallow their food whole after drowning it. Immature specimens eat crustaceans and insects. Their main predator is humans, who hunt them for leather or meat. In return, black caimans are known to catch and eat humans as well.