This is a really great point. The difference is between instinct and intelligence. But is the difference merely due to a greater amount of neurons between a spi

This is a really great point. The difference is between instinct and intelligence. But is the difference merely due to a greater amount of neurons between a spider and a chimp, or is there a fundamentally different architecture of those neurons that enables intelligence over instinct? Not coincidentally, the creatures we most often associate with intelligence happen to be mammals, who alone have a neo-cortex.