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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.
Saltwater crocodiles dispose of excess salt in their bodies through specialized salt glands. These are the largest species of crocodile, also making them the largest reptiles. They can grow up to six meters in length. [1] [9] American crocodiles (Crocodylus acutus) similarly prefer brackish over freshwater habitats. [10]
Crocodylus novaeguineae, New Guinea crocodile; Crocodylus palustris, mugger, marsh or Indian crocodile; Crocodylus porosus, Saltwater crocodile or Estuarine crocodile Crocodylus raninus, Borneo crocodile, is currently considered to be a synonym of Crocodylus porosus; whether or not it is a distinct species remains unclear. [5]
The highly adaptable American alligator is found in swamps, rivers and lakes with clear or turbid water. Crocodiles live in marshes, lakes and rivers, and can live in saline environments including estuaries and mangrove swamps. [115] American and saltwater crocodiles swim out to sea, [119] [118] no crocodilian species can be considered truly ...
Freshwater crocodile at Australia Zoo. Until recently, the freshwater crocodile was common in northern Australia, especially where saltwater crocodiles are absent (such as more arid inland areas and higher elevations). In recent years, the population has dropped dramatically due to the ingestion of the invasive cane toad.
The American crocodile (Crocodylus acutus) is a species of crocodilian found in the Neotropics.It is the most widespread of the four extant species of crocodiles from the Americas, with populations present from South Florida, the Caribbean islands of Cuba, Jamaica, Hispaniola, [4] and the coasts of Mexico to as far south as Peru, Ecuador, Colombia, and Venezuela.
The saltwater crocodile is considered to be the largest extant reptile, verified at up to 6.32 m (20.7 ft) in length and around 1,000–1,500 kg (2,200–3,300 lb) in mass. [2] Larger specimens have been reported albeit not fully verified, [ 3 ] the maximum of which is purportedly 7 m (23 ft) long with an estimated mass of 2,000 kg (4,400 lb).
Thalattosuchia is a clade of mostly marine crocodylomorphs from the Early Jurassic to the Early Cretaceous that had a cosmopolitan distribution. [3] They are colloquially referred to as marine crocodiles or sea crocodiles, though they are not members of Crocodilia and records from Thailand and China suggest that some members lived in freshwater. [4]