As of 2015 there are over four thousand species of lizards inhabiting almost every continent and habitat on earth. Lizards belong to the class Reptilia and, like snakes, turtles and other members of this order, are cold-blooded and covered with scales. Lizards, like most other reptiles, lay eggs.
Lizards are eaten by birds, mammals, snakes and other lizards. Baby lizards are especially vulnerable to predators of all kinds because they receive no maternal protection. Lizard eggs are eaten by skunks, badgers and snakes.
Most lizards are omnivores, however, what a lizard eats is largely influenced by its size. With over 3,800 different species of lizard, there is no set diet between them.
Lizards are distributed throughout the world, and as the San Diego Zoo notes, most of them live on the ground. Other common lizard dwelling places are underground burrows (especially in deserts), under rocks, marshy bogs and in trees.
Most species of lizard are quadrupedal and crawl using their four limbs and tail. Certain species are legless and slither like snakes. Some lizards, such as geckos, can adhere to vertical or inverted surfaces and move freely on them.
Lizards communicate through body language, sound and visual displays, such as posturing and gestures, in addition to bright colors and even barking or hissing. These communications are used to ward off rivals or potential predators and to attract mates.
A baby lizard is often referred to as a hatchling, though this term is not exclusive to lizards as most animals that are hatched from eggs can also be referred to as such. It is possible that some individual species may have more specific names for their babies. There are about 4,675 species of liza
The lizard has a wide variety of predators, including birds, snakes and even other lizards. When being chased or attacked by predators, lizards may swell up, hiss, break off their tails to escape or even change colors to blend in with their surroundings.
Lizards do have teeth. However, the teeth of most lizards aren't specialized the way they are in animals like carnivores or rodents. All of their teeth look like pegs and are simply for catching prey and moving them down the digestive tract.
A group of lizards is called a lounge. Only about 20 out of 6,000 lizards live in groups. Most lizard species are oviparous, meaning they lay their eggs. Many lizards lay their eggs in a secluded, thermally stable location, and then bury the eggs and leave them forever.