As anyone who notices my blog much may have seen, I've been rather enamoured of the Spore Creature Creator. (
My Spore Critters Here)
While many of the creatures I've made are of my own devising, I've also scoured the web for interesting sites where various forms of speculative biology are entertained artistically. So I have a few fun links:
http://www.alexries.com/galleries.htm http://dsc.discovery.com/convergence/alienplanet/splash.html http://www.bowdoin.edu/~dbensen/Spec/Beasts.htm(View: Character Encoding: Unicode (UTF-16) if you can't see it properly)
http://www.nemoramjet.com/sndallclades.html http://www.flickr.com/photos/bugmaker999/sets/72157594425420153/ http://www.flickr.com/photos/markwitton/