This is my new desktop background and I love it.
It's a slightly Photoshopped version of a Charles Harper illustration from an old children's book on biology. I found the original version on Flickr some time back and felt that it, though great, was too busy to have permanently on my computer. I've posted my variations on it on Flickr, including this yellow and blue version.
And the best part is that he included my two favorite animals: an anteater and a pear.