they protect them selves by using a fin on the top of their head to propel when their at slow speeds
-- They actually protect themselves by shooting away using their siphon, clouding their escape with ink, and when all else fails, tearing at their predator using their sucker hooks (depending on the species) and their hard beaks. --
The mantle of a squid is to cover and protect the squid's body.
leave them alone
yes it does
By killing its predator with it's tentacles.
The mantle of a squid is to cover and protect the squid's body.
It confuses their predators and sometimes blinds them.
There are only two types of squid that live in Antarctica: the Colossal Squid and the Giant Squid. I believe they, like whales or seals, have an extra layer of blubber/fat that can protect them from the freezing water temperatures. Any other squid brought into Antarctica would die in minutes, if not seconds.
Huh? You didn't say 'what' does it do to protect itself from others.
Like the octopus, the squid use ink and a camouflage to blind the enemy predator and blend into its surroundings. Some squids (like the Humboldt squid) use hook on their sucker cups to defend it's self.
Cephlapods include squid, octopus, cuttlefish and others and are a Mollusk.
The foot of the squid is it's tentacles, it enables the squid to move very very very very very very very fast. The foot is also the mantle of the squid (the mantle is a thick layer of tissues {muscle} all mollusks use to protect their guts). In this case the squid uses it's mantle to run away from predators (swim away).
Squid, octopus, and cuttlefish, rely on ink as a natural defense which they use to protect themselves from their enemies. They can make as much as they need until they die.