Don't you love the way they had a perfectly good animal given the title of this book, but completely disregarded it?
There is a reason: http://www.rmi.net/~lutz/lp-cover-post.html Wood rats must learn about Pythons!
Alternatively, maybe this is why:
The "Learning" books often have smaller, cuter animals than other books. Compare
with and
I'm not sure there's such a thing as a cute python, but a cute rodent is easy.