Think of an animal, any animal at all. It could be a shark or a squid or a snail or a chimp. It might be a kangaroo, a giant fruit bat or a honeybee. Whatever animal you think of in your head, it has a secret history. An exciting, death-defying journey that has happened across millions of years, in which there has been winners and losers, friends and enemies, struggles and hardships. This animal journey has a name - it is called EVOLUTION.

Animal evolution begins in a single place - an empty sea, more than 600 million years ago. It was a primitive world, full of tiny slime animals, but it would lead (give or take a few hundred million years) to many wonderful things - including you! Reading this book, choosing your own path through its pages, you can explore the secret history of life on Earth. On each full colour illustrated page, you will discover a new animal, each with their own exciting evolution survival story to tell. And it's up to YOU to make the life choices that will lead to their next evolutionary step. Pick a choice, turn to the page, and see what you have become next. Where will you end up? What will you be?

Can you survive to the present-day or will you face extinction along the way? For the first time ever, the journey is in your hands . . .