Gr 1–4— The Kratt Brothers are back, this time investigating big creatures and how their size helps them survive. The Kratts share information about 16 animals, from elephants to blue whales, showing how each one fights predators, hunts prey, or otherwise survives in the wild. As the brothers explore each animal's Creature Power, readers will giggle at the brothers' antics and get a kick out of how the animals react; for instance, the ostrich is shown kicking one of the brothers out of its nest: "The ostrich can kick with its big clawed feet and can run away with its long legs." Stylized, vivid cartoon illustrations mirror the text, giving deciphering tools for new readers. Children will love the just-ferocious-enough animals shown in their natural habitats and may be inspired to do further research. VERDICT Developing readers will enjoy the spreads, short sentences, and the Kratts, making this a good choice for early reader shelves.— Melisa Bailey