Catherine Barr studied Ecology at Leeds University and trained as a journalist. She worked at Greenpeace International for seven years as a wildlife and forestry campaigner and has a long-running interest in environmental issues.

While working as an editor at the Natural History Museum, she researched and wrote two major summer exhibitions: Dinosaurs of the Gobi Desert and Myths and Monsters. Her previous books for Frances Lincoln are The Story of Life and Elliot's Arctic Surprise.

She lives on a hill near Hay-on-Wye in Herefordshire with her partner and two daughters.

Chaaya Prabhat is a graphic designer, illustrator and lettering artist.

After completing her M.A in Graphic Design from Savannah College of Art and Design, she is now working independently in Chennai, India.

She has worked with several clients such as Snapchat, Facebook, Google and The Obama Foundation.