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- Reptila - Reptiles
Reptiles are tetrapod animals in the class Reptilia, a paraphyletic grouping comprising all amniotes except mammals and birds. Properly, reptiles and birds are grouped together in the monophyletic group known as sauropsids.
- Reptiles Are Four-Legged Vertebrate Animals.
- Most Reptiles Lay Eggs.
- The Skin of Reptiles Is Covered With Scales (or Scutes)
- Reptiles Have Cold-Blooded Metabolisms.
- Reptiles Breathe With the Aid of Lungs.
DescriptionReptiles are tetrapod animals in the class Reptilia, a paraphyletic grouping comprising all amniotes except mammals and birds. Properly, reptiles and birds are grouped together in the monophyletic group known as sauropsids.
❥︎Scientific name: Reptilia
❥︎Class: Reptilia; Laurenti, 1768
❥︎Higher classification: Sauropsida
❥︎Kingdom: Animalia
❥︎Phylum: Chordata
❥︎Rank: Class
Habitat
Reptiles are tetrapod vertebrates, creatures that either have four limbs or, like snakes, are descended from four-limbed ancestors. Unlike amphibians, reptiles do not have an aquatic larval stage. Most reptiles are oviparous, although several species of squamates are viviparous, as were some extinct aquatic clades[6] – the fetus develops within the mother, using a (non-mammalian) placenta rather than contained in an eggshell. As amniotes, reptile eggs are surrounded by membranes for protection and transport, which adapt them to reproduction on dry land. Many of the viviparous species feed their fetuses through 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, which can grow up to 17 mm (0.7 in) to the saltwater crocodile, Crocodylus porosus, which can reach 6 m (19.7 ft) in length and weigh over 1,000 kg (2,200 lb).