Could this be described as intelligence that is completely different to ours? > http://www.newscientist.com/article/dn18391-intelligent-oil-droplet-navigates-chemical-... pH difference described in the article is the same as a dog on a leash. Neither is an example of intelligence. Now the dog off the leash performs a trick he has been taught: simple intelligence. Now the dog spots my 'going-out' hat and runs to hide so as to avoid his kennel. A higher integrative form of intelligence. Obviously your question leads to a spectrum of definitions.