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What are four different types of reptiles?
The four main reptile groups are the Turtles and Tortoises, Snakes and Lizards, Crocodiles and Alligators, and Tuatara (a single species more primitive than other reptile groups and found only in a group of small islands near New Zealand).
What are 4 characteristics common to all reptiles?
All reptiles have backbones, lay hard or leathery-shelled eggs, have scales or scutes, and they are all ectothermic. We usually think of snakes as reptiles, which they are, but there are more reptiles than just snakes.
What are the differences between reptiles and amphibians?
Reptiles have scales, and their skin is dry. Amphibians do not, and their skin is often moist with mucus, which keeps them from drying up. Reptiles hatch from eggs that have a protective outer layer such as a brittle or leathery shell.
What’s the difference between reptile and animal?
Two major groups of the world’s animals are mammals and reptiles. Mammals have hair all over their bodies, while reptiles have scales. Mammals have live births and produce milk for their young, while reptiles lay eggs. Reptiles have only three-chambered hearts, mammals have four.
What reptiles live in groups?
In general, reptiles are better off housed individually. Certain lizards (bearded dragons, anoles, geckos) and chelonians (turtles and tortoises) can live successfully together when set up properly in same-species tanks.
What is the most diverse group of reptiles?
Squamates are the most diverse of all the reptile groups, with approximately 7,400 living species. Squamates include lizards, snakes, and worm-lizards.
What are the differences between reptiles and mammals?
Mammals have hair all over their bodies, while reptiles have scales. Mammals have live births and produce milk for their young, while reptiles lay eggs. Reptiles have only three-chambered hearts, mammals have four. Reptiles will continue growing throughout their lives and continually replace lost teeth.
What are three living living groups of reptiles?
The major groups of living reptiles-the turtles (order Testudines), tuatara (order Rhynchocephalia [Sphenodontida]), lizards and snakes (order Squamata), and crocodiles (order Crocodylia, or Crocodilia)-account for over 8,700 species.
What are the four main groups of Reptilia?
There are four major groups of reptiles living today: turtles/tortoises, lizards/snakes, crocodilians, and dinosaurs.
What is the largest group of reptiles?
By far the largest group of reptiles are lizards and snakes, member of the order Squamata . With over 5,000 lizard species and 3,000 snakes, these groups together comprise the large majority of living reptiles.
What is the smallest order of reptiles?
Under the current system of reptile classification, there are approximately 300 species of turtle and tortoise in the Testudines order of reptiles. Sphenodontia – This is the least known and smallest order of reptiles. It is comprised of only two species of tuataras from New Zealand.