Discovered its free status courtesy of Doug Pardee's Freebie list on the Nookbook Discussion board.
Sounds Neat-O™. It's 44 pages and the read to me is quite loud (unlike some other books). It was a fun book and even I learned a few facts I didn't know. Covers maybe 22 different animals (estimated, I didn't count, but usually each animal gets 2 pages)
****Please doublecheck the price before downloading. While it is free now, it may not be in the future.****