Size and Strength. The giant squid is a mollusk and a member of the cephalopod class, which includes the octopus and other squids. Giant squid live up to their name: the largest giant squid ever recorded by ... the squid uses it to exhale, expel waste, lay eggs, squirt ink, and move through the water by jet-propulsion.
Giant squid mostly eat deep water fishes and other squids—including other giant squids.
As such, nearly all cephalopods such as squid can squirt ink … You’ll be relieved to know that “squid ink” used in food for colouring or as an additive, normally cuttlefish ink, is prepared directly from the ink sac and doesn’t include the mucus part.