examples of reptiles 
Reptiles: cold-blooded vertebrates covered in scales (about 6,000 species) having limbs that are sometimes atrophied or absent.
Aquatic and land reptile found in hot regions; it has an elongated head, strong jaws, short legs and a powerful tail.
Short-legged aquatic reptile found in North America and China; its head is shorter and wider than that of the crocodile.
Medium-sized aquatic reptile found in Central and South America; it is less aggressive than the crocodile and the alligator.