as and the maximum length of a female as . Distribution and habitat This species is restricted to the Orinoco river basin in Colombia and Venezuela. They have been occasionally reported on the island of Trinidad, but this has not been confirmed, and witnesses may have mistaken an American crocodile for the rarer species. This crocodile was once thought to have inhabited a wide range of riparian habitats, from tropical forests to the streams of the Andes foothills. Today, this species is restricted to the Llanos savanna and associated seasonal freshwater rivers. Behavior and ecology Hunting and diet Little study has gone into the dietary biology of Orinoco crocodiles but from eye-witness accounts and partial studies from captivity and crocodile farms, the majority of the Orinoco crocodile's diet appears to consists of large fish. The species' relatively narrow snout is ideally suited to minimize water resistance in capturing such aquatic prey. However, as an opportunistic apex predator, virtually any animal living within its range could be considered a potential meal, such as invertebrates, reptiles, birds, and mammals. Despite having a rather elongated skull, its base snout is wide, hinting to a generalist diet. Additionally, as they age, mature males in particular appear to manifest a broadened snout, presumably due to a shift to being able to take larger prey as is seen in several other large crocodile species. It stalks both aquatic and terrestrial prey. As a large adult, terrestrial prey may include monkeys, deer, birds, other reptiles, domestic animals, and even occasionally other large predators if the opportunity arises. Similar to many of the larger crocodile species, the Orinoco crocodile has also been observed catching and eating smaller species of crocodilians, such as adult common caimans and sometimes cannibalizing smaller individuals of its own kind. Attacks on humans have been reported, but this is highly unlikely to be a common behavior today, given the very small population of the species and its relative isolation from large human settlements. Historically attacks were not unusual and on his trip to the region in 1800, natives told Alexander von Humboldt that two or three adult people were killed per year by Orinoco crocodiles. A small number of better documented fatal attacks were reported in the 1900s–1930s when the species was still relatively common. The only well-documented recent attack, on a fisherman in 2009, was serious but not fatal. A second survivor was