grey not grey rated Polar bear, polar bear, what do you hear?: 5 stars
![Bill Martin Jr.: Polar bear, polar bear, what do you hear? (1991, Henry Holt)](/images/covers/5873cbc2-5bd4-4239-ab8d-ae50067430dd.jpeg)
Polar bear, polar bear, what do you hear? by Bill Martin Jr.
Zoo animals from polar bear to walrus make their distinctive sounds for each other, while children imitate the sounds for …