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The adult saltwater crocodile's broad body contrasts with that of most other lean crocodiles, leading to early unverified assumptions the reptile was an alligator. [30] Young saltwater crocodiles are pale yellow in colour with black stripes and spots on their bodies and tails.
Three extant crocodilian species clockwise from top-left: saltwater crocodile (Crocodylus porosus), American alligator (Alligator mississippiensis), and gharial (Gavialis gangeticus) Crocodilia is an order of mostly large, predatory, semiaquatic reptiles, which includes true crocodiles, the alligators, and caimans; as well as the gharial and ...
Saltwater and American crocodiles: none of the extant species of crocodiles are truly marine; however, the saltwater crocodile (Crocodylus porosus) does display adaptations to saltwater inhabitation and dwells in the brackish waters of Southeast Asia and Australia.
A saltwater crocodile in captivity. Size greatly varies among species, from the dwarf crocodile to the saltwater crocodile. Species of the dwarf crocodile Osteolaemus grow to an adult size of just 1.5 to 1.9 m (4.9 to 6.2 ft), [34] whereas the saltwater crocodile can grow to sizes over 6 m (20 ft) and weigh over 1,000 kg (2,200 lb). [35]
Crocodilians range in size from the dwarf caimans and African dwarf crocodiles, which reach 1–1.5 m (3 ft 3 in – 4 ft 11 in), to the saltwater crocodile and Nile crocodile, which reach 6 m (20 ft) and weigh up to 1,000 kg (2,200 lb), [38] [46] though some prehistoric species such as the late Cretaceous Deinosuchus were even larger at up to ...
Sometimes confused with the much larger and more aggressive crocodiles found in Australia, Africa and southeast Asia, the American crocodile (Crocodylus acutus) is relatively docile and shy.
Cladistically, it is defined as Crocodylus niloticus (the Nile crocodile) and all crocodylians more closely related to C. niloticus than to either Alligator mississippiensis (the American alligator) or Gavialis gangeticus (the gharial). [5] This is a stem-based definition for crocodiles, and is more inclusive than the crown group Crocodylidae. [3]
Bear in mind that a saltwater aquarium is more expensive and difficult to set up and maintain than freshwater even if you chose one of the best fish tanks. Some of the fish, too, can fetch eye ...