the colossal squid has a donut shaped brain- and through a tiny hole in the center runs their esophagus. becuase of this perculiarly placed esophagus, they have to be mindful of what & how they eat- as anything too large could cause brain damage! they tear their food into teeny tiny pieces so it can fit through their teeny tiny esophagus (measuring about .39 inches wide) (which is particularly impressive when you consider these big boys measure about 46 ft long and weigh up to 1500 lbs!)
because these squid live in extremely cold temperatures (up to 7200 feet deep! and off the tip of africa through antartica), their metabolism moves verrrrry slowly and they don’t have to eat very much.