Polar Bear, Polar Bear, What Do You Hear?

Polar Bear, Polar Bear, What Do You Hear? is a children's picture book, published in 1991, written and illustrated by Bill Martin, Jr. and Eric Carle. The book is designed to help toddlers identify zoo animals and the noises they make. It features a Polar Bear, a Lion, a Hippopotamus, a Flamingo, a Zebra, a Boa Constrictor, an Elephant, a Leopard, a Peacock, a Walrus, a Zoo Keeper and some Children.

This is a companion book to Brown Bear, Brown Bear, What Do You See?, published by Carle and Martin in 1967, replacing the earlier text's colours and common animals with sounds and less common creatures.