The man and woman are known as Adam and Eve. Supposedly they are the first pair of humans. They of course reproduced in order to start the human race. Most scientists believe we evolved from primates or something of that nature instead. Another example of evolution is reptiles.
Reptiles are descendants of the massive dinosaurs.
These creatures evolved to live to this day by million years of re-structuring their body features to their changing environment. An obvious trait in which reptiles evolved to the present day is by their size. Dinosaurs weighed several tons. Today, their descendants have changed to their environment causing their size to vary. Now their size varies from an ounce to a ton.