True or false: Sloths are lazy. Answer: False! True or false: Sloths are mysterious. Answer: True! Scientists are only beginning to discover how sloths live in the wild.

Sloths spend most of their lives in trees, and until recently scientists didn’t know very much about them. But Dr. Rebecca Cliffe was determined to discover their secrets. To find out more, she fitted sloths with special backpacks containing a device to track their activity. She learned how to climb trees in the Costa Rican jungle so she could take sloth hair samples and test their DNA. And she’s helped create sloth crossings and plant trees to ensure the sloths aren’t trapped in shrinking territories. Along the way, she earned the nickname Dr. Sloth.

Discover the story of how an animal-loving kid in England grew up to become one of the world’s leading sloth scientists, and learn how Dr. Sloth is using her discoveries to help keep sloths safe. Author and professional wildlife photographer Suzi Eszterhas brings readers up close to the action with engaging text and fantastic photos. Scan QR codes throughout the book to see her videos of sloths in the wild!