Steve Cumbaa is a paleontologist at the Canadian Museum of Nature, and an award-winning author of science books for children. His books include The Bones Book and Skeleton; The Bones and Skeleton Gamebook (with Karen Anderson);The Neanderthal Book and Skeleton (with Kathlyn Stewart); Megalodon, The Prehistoric Shark (with Susan Hughes); and his most recent, Sea Monsters. He lives in Ottawa, Ontario.
Margot Thompson is an illustrator of children's books including the award-winning Tree of Life, Sea Monsters, Make a Change: Shapes, and Make a Change: Opposites. She also works as a designer at the Royal Ontario Museum in Toronto.