http://www.nwbotanicals.org/mediawatch/purplebear.htm Purple polar bears?
Evidently, polar bear skin spray is sometimes purple.
Edit:
http://www.newscientist.com/article.ns?id=dn8718 Slime mold controls robot?
WOT THE FUCK????
If you read the article, it's not as nearly as nuts as it sounds, but it's still interesting.