"In this quircky competition, these two creature contenders battle it out in 22 exciting categories, from best smile to biggest pooper to most famous." -- back

Introduces the three-toed sloth, describing its physical characteristics, habitat, life cycle, and ways in which it protects itself from predators.

"Brimming with photos and scientific facts, this middle-grade nonfiction book about sloths treats researchers and wild animal lovers to a comprehensive zoologic

The #1 bestselling chapter book series of all time celebrates 25 years with new covers and a new, easy-to-use numbering system! Getting the facts behind the fic

You may think you're safe from a shark attack if you stay out of the ocean...but you're not! There's a shark that can lurk in rivers as well as the sea; a shark