Bees can unscrew a bottle

That's amazing, even if the bees just pushed or pulled the bottle top. Whether they acted by instinct or cognitively, we and scientists are in the dark. We don't even have  a science of human cerebral physiology which, I think, requires sub-microscopic investigations of living brains and the mysterious role of electricity in all processes. Please, anybody, cite links to posts or articles or books that deal specifically with these matters.