Apparently feeling pressured by Tux, supporters of Darwin, an open-source version of the Mac OS, decided they needed their own mascot. The result is Hexley, a curious platypus who in some images is portrayed with horns and a pitchfork "“ enough evidence for several intelligent design theorists to offer him as proof of the satanic origins of evolutionary biology.
No evidence of these "several" intelligent design theorists is presented. So I did a little digging. I managed to find only a single website using Hexley as proof of the satanic roots of evolution. What's worse, the page is an obvious parody. The short Wikipedia entry specifically mentions the Hexley hoax, which was featured in other medias back in 2001.
A little tip, Panda-bloggers: If you didn't spend so much time taking pictures of yourself sticking your hands up the butt of a panda puppet, you might have time to figure stuff like this out for yourselves.