Sometimes, myths and stories are more believable than truth, because it is difficult to digest when one says that we humans have evolved from less complex animals. In fact, science says that the present day mammals come from giant reptiles that ruled the world thousands of years ago.
About 200,000,000 years ago, reptiles ruled the earth. The age of the reptiles is known as the Mesozoic Era, Remember, dinosaurs were present in that era. Gradually one set of reptiles began to change. They started to grow coats of hair and became warm blooded. Instead of laying eggs like other reptiles, they kept the eggs inside their body. The babies grew inside the mother’s body until they were born as live young ones. In short, these reptiles had evolved into mammals.
The first mammals were very tiny and timid creatures. These early mammals were small, nocturnal, hairy, and warm-blooded and ate mainly insects. Later as conditions on Earth changed and dinosaurs disappeared from the face of the earth, mammals began to grow bigger. They also started to spread out until they took over the world!