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Reptilians are the most dominant species and warlike.

  1. Dinosauroid
  2. Sleestak
  3. Booteans
  4. Yautja (Predator)
  5. Voth (Star Trek)
  6. Rigelians (V)
  7. Insectoid Reptillian Hybred (V 2009)
  8. Goa'uld and Unas (Star Gate)
  9. Denobulan
  10. Gorn
  11. Jem hadar

Reptiles are animals in the (Linnaean) class Reptilia. They are characterized by breathing air, laying shelled eggs (except for some vipers and constrictor snakes that give live birth), and having skin covered in scales and/or scutes. Reptiles are classically viewed as having a "cold-blooded" metabolism. They are tetrapods (either having four limbs or being descended from four-limbed ancestors). Modern reptiles inhabit every continentwith the exception of Antarctica, and four living orders are currently recognized:*Crocodilia (crocodiles, gavials, caimans, andalligators): 23 species

  • Sphenodontia (tuataras from New Zealand): 2 species
  • Squamata (lizards, snakes, and worm lizards): approximately 7,900 species
  • Testudines (turtles and tortoises): approximately 300 species

Unlike amphibians, reptiles do not have an aquatic larval stage. As a rule, reptiles are oviparous (egg-laying), although certain species of squamates are capable of giving live birth. This is achieved by either ovoviviparity (egg retention) or viviparity (birth of offspring without the development of calcified eggs). Many of the viviparous species feed their fetusesthrough various forms of placenta analogous to those of mammals, with some providing initial care for their hatchlings. Extant reptiles range in size from a tiny gecko, Sphaerodactylus ariasae, can grow up to 1.7 cm (0.6 in) to the saltwater crocodile,Crocodylus porosus, which may reach 6 m in length and weigh over 1,000 kg.

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