This kind of animal with elongated bodies, large eyes, eight arms and two tentacles are squids. They are pretty unique species because can change color for camouflage and signalling. Like this one, which became neon yellow. Some of them are bioluminescent, using their light for counter-illumination camouflage, while many species can eject a cloud of ink to distract predators. Neon cursor pack with Squid cursor.
