"A penguin's sharp beak hides a textured tongue that helps it grip fish. A red-eyed tree frog has a holden eyelid that covers its eyes so it can see predators while it sleeps. Rhyming text and eye-catching photos offer an up-close look at lots of fascinating hidden creature features!"--

Ages 5-9 Millbrook Press.|||Grades K-1 Millbrook Press.|||juvenile

Jane Park.

Includes bibliographical references.