Meet Helicocranchia, the piglet squid. ⁠💙 This species is found throughout the world’s tropical and subtropical oceans and, in the Atlantic Ocean, in north temperate waters. Their mantle reaches a maximum size of 10 centimeters (nearly four inches). Like other glass squids, they covered in tiny pigment sacs called chromatophores. They often keep their chromatophores closed so their skin is basically see through. This invisibility cloak hides them from both predators and prey.⁠ ⁠ Glass squids have a large internal cavity they fill with ammonium, a chemical that is lighter than seawater. Building a more buoyant body means the squid does not have to swim as hard to stay afloat. They maneuver slowly through the midwater with their fins, constantly on the lookout for danger or a delicious meal.