parasites make up the majority of species on Earth. According to one estimate, parasites may outnumber free-living species four to one. In other words, the study of life is, for the most part, parasitology. The book in your

There is so much being discovered about human origins. Five years ago, the oldest fossils of hominids were four and a half million years old. There has been a series of discoveries that pushed fossils back to six or seven million years old, which adds a couple of years to evolution history.

I wish I took more scientific classes, because I've always been interested in science. Most of what I have learned I've learned on the job. It's a really neat opportunity to learn by calling up scientists, some of which are world-renowned, ask them questions.

I'm really interested in the history of life in general. How life began to how birds evolved to what our ancestors looked like.

Really, all living humans are closely related to each other. If you take different people's DNA and compare it to each other, there are only tiny fractions of difference.

I have learned so much about where we came from. It has also allowed me to appreciate the new science that has come out on human origins.