No Brain, No Problem

 Cnidarian organisms like jellyfish and sea anemones operate without brains, instead they use associative learning to feed and navigate through their daily lives. Researchers recently discovered that they can be trained by manipulating their environment. On their own they learn by trial and error, if they bump into something they learn to avoid it by visual cues which researchers duplicated in tanks by having different colored stripes to imitate the mangrove roots where the jellyfish usually find their meals of tiny crustaceans. Of course all this really proves is how they survive without a brain, it's not like they can be trained to do anything that isn't related to their survival, though it does explain how some politicians operate seemingly without brains.