Snails make complex decisions using just TWO brain cells: Simple neuron network helps creature find food and save energy

To eat or not to eat? That is the question facing fresh water snails when they come upon an morsel in their watery environments. But while such a quick decision might seem beyond the snail's pace, scientists have found that this complex decision-making process is dictated by a simple brain circuit, comprised of just two cells. The first brain cell lets the mollusc know if food is available or not, while a second neuron tells the animal if it is hungry or not. Scientists at the University of Sussex, who made the discovery by monitoring fresh water snails on the hunt for food, and say their findings could potentially lead to developing more efficient robotic brains.