Earth teems with a staggering variety of animals including 9000 kinds of birds 28000 types of fish and more than 350000 species of beetles What explains this explosion of living creatures14 million different species discovered so far with perhaps another 50 million to go The source of lifes endless forms was a profound mystery until Charles Darwin brought forth his revolutionary idea of natural selection But Darwins radical insights raised as many questions as they answered What actually drives evolution and turns one species into another To what degree do different animals rely on the same genetic toolkit And how did we evolve
