Unabridged. Zoo animals from a polar bear to a walrus make their distinctive sounds for each other, while children imitate the sounds for the zookeeper.

Compact disc and book. Accompanying book published by Henry Holt (2010) and illustrated by Eric Carle. "This 2010 paperback edition not for individual sale"--P. facing t.p. of pbk. "Not For Individual Sale - This paperback edition available only as part of the book and CD set"--P. [4] of pbk. cover. Recording originally produced by Macmillan Audio in 2007. Includes Spanish language version read by Adriana Sananes.

Track 1 (3:59) : read in English with no page-turn signals -- track 2 (4:06) : read in English with page-turn signals -- track 3 (3:57) : read in Spanish with no page-turn signals.