The black caiman is one of the largest reptiles. It is the largest predator in the Amazon basin and possibly  the largest member of the family Alligatoridae. Most adult black caimans are 3 to 4.26 metres (9.8–14 ft) in lengths, with old males rarely growing larger than 5 metres (16 ft). The black caiman broadly overlaps in size with the American alligator, although it is on average larger at maturity. In some areas (such as the Araguaia River) this species is consistently reported at 4 to 5 metres (13–16 ft) in length, much larger than the alligator (which rarely even reaches 4 meters), although specimens this size are uncommon. Several unconfirmed sources report that the black caiman can grow to 6 metres (20 ft) or more. It is, however, the third largest crocodilian in South America behind the American Crocodile and Orinoco Crocodile. Immature specimens eat crustaceans and insects but quickly graduate to eating fish, including piranhas, catfish, and perch, which remain the primary food source for all black caiman. Various prey will be taken by opportunity, includes turtles, birds and mammals, the latter two mainly when they come to drink at the river banks. Larger specimens can take tapirs, anacondas, deer and capybara. Jaguars are a known predator of all other caiman species as well as juvenile black caimans, but mature black caimans likely have no natural predators, as is true of other similarly-sized crocodilian species (given the size, weight and immense biting strength). Their teeth are designed to grab but not rip, so they generally try to swallow their food whole after drowning it. Their main predator is humans, who hunt them for leather or meat. There are tales of this species devouring humans and given its size this is probable, although (like the critically endangered, but potentially dangerous Orinoco Crocodile of Venezuela) it is very  unlikely humans have been attacked in modern times, due in part to the species' low population - and given that most man-eaters in other crocodilian species tend to be large adult males, this further reduces the probability. At the end of the dry season, females build a nest of soil and vegetation, which is about 1.5 meters (5 ft) across and 0.75 meters wide (2.5 ft). They lay up to 60 eggs, which hatch in about six weeks, at the beginning of the wet season, when newly-flooded marshes provide ideal habitat for the juveniles. Unguarded clutches are quickly devoured by a wide range of animals. It is well documented that, as with other crocodilians, caimans frequently move their young from the nest in their mouths after hatching (whence the belief that they eat their young), and transport them to a safe pool. The mother will assist chirping, unhatched young to break out of the leathery eggs, by delicately breaking the eggs between her teeth. She will look after her young for several months. The female black caiman only breeds once every 2 to 3 years. |
See Also:
| Manaus | Map | Things to do | Landmarks | History | Useful Info | Weather | Rubber Tree | Amazon Theatre | Native Brazilian / Indegenous | Stick Insect | Survival in the Amazon Jungle | Tarantula | Brazilian Carnaval | Caiman / Alligator | Termites | Amazon River Dolphins / Pink Dolphins | Piranha | Spiders | Water Lilies | Meeting of the Waters | Amazon River / Amazonas Rives | Amazon Jungle / Amazonas Jungle |
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AN - Thursday, March 8, 2012
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