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The rhinoceros iguana (Cyclura cornuta) is an endangered species of iguana that is endemic to the Caribbean island of Hispaniola (shared by Haiti and the Dominican Republic) and its surrounding islands. A large lizard, they vary in length from 60 to 136 centimetres (24 to 54 in), and skin colours range from a steely grey to a dark green and ...
All species of Cyclura are sexually dimorphic; males are larger than females, and have more prominent dorsal crests as well as larger femoral pores on their thighs, which are used to release pheromones. [16] [17] The particulars vary slightly among species and subspecies, the rock iguanas reach sexual maturity at three to seven years of age.
The word "iguana" is derived from the original Taino name for the species, iwana. [9] In addition to the two species in the genus Iguana, several other related genera in the same family have common names of the species including the word "iguana". [10]
The species was first described by American herpetologist Edward Drinker Cope in 1885. [2] In 1885, Cope first described the lizard as two species in the same paper: C. onchiopsis and C. nigerrima, due to the animal's almost black coloration. A year later he renamed it as C. onchiopsis.
Reptile species (IUCN, 2016-2) 5130 extant species have been evaluated; 4220 of those are fully assessed [a] 3229 are not threatened at present [b] 989 to 1899 are threatened [c] 26 to 43 are extinct or extinct in the wild: 24 extinct (EX) species [d] 2 extinct in the wild (EW) 17 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
The Javan rhino (Rhinoceros sondaicus) once roamed across many countries in Southeast Asia. Around 2,000 years ago, they were still common in many parts of China. Around 12,000 years ago, they ...
Although several iguana species live in Florida, the predominant one is the green iguana, native to Central and South America. According to the Florida Fish and Wildlife Conservation Commission, ...
The marine iguana (Amblyrhynchus cristatus), also known as the sea iguana, saltwater iguana, or Galápagos marine iguana, is a species of iguana found only on the Galápagos Islands . Unique among modern lizards, it is a marine reptile that has the ability to forage in the sea for algae, which makes up almost all of its diet. [5]