The bigeyed foi replaced its ancestor the foi. It is very much like its ancestor except it has adpated better to the deep ocean. Its eyes have gotten much bigger so it can see in the dim light of the twilight zone. When it goes deeper into the abyss zone where these is no light it relys upon the flashes of other biolumienecent creatures. Like all fois its digestive system is external and located on its belly. It will then curl up like a ball around the food and release gastric acid top break down the food. It uses this muscles to flap its "wings" to swim. It can also sense vibrations in the water using its skin.