Reptiles are a group of cold-blooded animals that include snakes, lizards, turtles, and crocodiles. They have scaly skin, which helps them retain moisture and survive in various environments. Most reptiles lay eggs, but some, like certain snakes, give birth to live young. These creatures are found all over the world, from deserts to forests and even in water. Reptiles play important roles in their ecosystems, often acting as predators or prey. They are fascinating animals that have adapted to their surroundings over millions of years, showcasing the diversity of life on Earth.