(Paperback)

Learn about the ways animals around the globe use tools.

(Hardback)

Learn about the ways animals around the globe use tools.

(Hardback)

Slingshot and Burp, two pea-shootin', slingshot-totin' cowhands on two wheels, are on the lookout for action. Saddled up to battle the boredom of summer, these two double-cousins, best friends, and next-door neighbors have fitted themselves out like Old West cowboys to charge boldly (and sometimes bravely) into the southwestern desert that's their backyard.