Information about Reptiles:
Reptiles are vertebrates which are characterized by being air breathing, laying eggs with shells, and being covered by scales or scutes. They cannot regulate their blood temperature, and are often referred to as ‘cold-blooded.’ In order to regulate their body temperature, reptiles must bask in the sun or find another source of heat in order to become active. Also, if they become too warm, they must retreat into a cool place to lower their body temperature. Reptiles are found on all continents except Antarctica.
With the class Reptilia there are four orders: Crocodilia (crocodiles, gavials, caimans, and alligators), Sphenodontia (tuataras from New Zealand), Squamata (lizards, snakes, and worm lizards) and Testudines (turtles and tortoises) Unlike amphibians, reptiles do not have an aquatic larval stage. Most reptiles lay eggs, but some species do give birth to live offspring. There are more than 6,500 different species of reptile alive today.