Types of repitiles in odia

1. Reptiles are defined as a vertebrate animal of a class that includes snake,
lizards, turtles and tortoise. And they are distinguished by having dry scaly skin
and typically laying soft-shelled eggs on land. Some of the examples of reptiles
are lizards, Turtles, Snakes, Chameleons, Dinosaurs, Crocodiles, Scaled reptiles,
Geckos, Skink, Sauria, Diapsid, Plesiosauria and also there are many other
examples of reptiles.
They have little changes compared to other reptiles from the very first
appearance, that is 200 million years ago. They have a protective shell called a
carapace. It covers their body and provides camouflage. The turtle shell is
composed of two parts .
The earliest known proto-reptiles originated around 312 million years ago
during the Carboniferous period, having evolved from advanced reptiliomorph
tetrapods which became increasingly adapted to life on dry land. The earliest
known eureptile "true reptile"was Hylonomus, a small and superficially lizard-
like animal.
Reptiles are found all over the world, except in very cold areas. The greatest
number and variety are in the hot, humid tropics. Snakes and lizards live in
many different kinds of places. They can live on land, in trees, in underground
tunnels, or in water. Most turtles live in water but spend some time on land.
Tortoises live only on land. Alligators and crocodiles spend most of their time
in water, but they can make short trips on land.
Reptiles have different ways of protecting themselves from their enemies.
Rattlesnakes shake their tail rattle when they feel threatened. A cobra spreads
its neck to look bigger. Some turtles hide in their shells. Crocodiles, turtles, and
some lizards and snakes hiss loudly. Most reptiles bite when threatened.
Alligators, crocodiles, and most lizards hear fairly well. Snakes and turtles have
trouble hearing. Instead they can feel vibrations in the ground. Some reptiles
have poor eyesight. This is true of snakes and lizards that tunnel underground.
Reptiles produce amniotic eggs, which differ from those of amphibians by
having special membranes and a shell that help prevent the embryo from
drying up in a terrestrial environment where moisture levels may be low. It
was owing largely to their amniotic eggs that reptiles became the first
vertebrates to adapt completely to life on land.