Dr Charles van Rees is a conservation scientist and naturalist. His research is focused on how we manage, protect, and relate to the natural world. He's an assistant professor at the Odum School of Ecology at The University of Georgia and the co-host of Nature Guys podcast.Marc Pattenden is a self-taught illustrator from East Sussex, UK. As a child he drew endlessly, but it wasn't until his son was born that he rediscovered his love of doodling. Marc has since graduated from doodling and now works full time as an illustrator. He spends much of his time drawing silly pictures containing forlorn looking yetis, giant purple robots and the like with the aim of creating colourful engaging work, full of texture and atmosphere.