A shrimp’s heart is in its head. Have you ever found yourself in a situation where you can’t choose between following your head or your heart? Well, it seems shrimp have an evolutionary advantage when it comes to tough decisions. Kidding aside, one of the fun facts about shrimps is that their hearts are literally in their heads. Specifically, it is found in the thorax just behind the head – but they are covered in the same shell segment.