Turning skin into sperm

Eggs and sperm are pretty special cells. They are the chains that link one generation to the next. In a sense they are our immortal parts, with some living on in our children, and some of theirs carrying on in yet the following generation, and so on. The scientists that study these cells consider them … Read more

DNA Proves Evolution

In many ways our DNA defines us. Consider identical twins, which are the result of an embryo splitting in early life. They are actually a single individual that divided into two parts during the early stages of embryonic development. They don’t call them identical for nothing. Studies show that in addition to looking the same … Read more