John Acorn is a writer, broadcaster, and biologist. In 2008, he received NSERC's Michael Smith Award for Science Promotion. He lives in Edmonton with his wife Dena and sons Jesse and Ben.

Volker Bodegom's meticulousness and enthusiasm for cycling are reflected in this useful title.

Ian Sheldon is an accomplished artist, nature illustrator and ecologist, with a degree in ecology from Cambridge University. His studies have taken him around the world-throughout North and South America, Europe, Southeast Asia and South Africa.