To eat
Any type of sharks.
some do to hide them self from sharks and other animal that want to kill them
Something like a large ocean creatures can kill, octopuses, sharks and turtles. It might be a giant squid or something really big.
Sharks.
Blue Ringed octopus, Day octopus, and Giant octopus. Blue ringed octopuses are small sized, but have deadly toxic that can kill a fully-grown man. Day octopuses are large and can float to attack divers. Giant octopuses are the largest species that can kill a human with a beak bite.
sharks.
Fish sharks octopus
a Barracuda eat o octopus
Hammerhead sharks eat a large range of items including fish, squid, octopus, crustaceans, and other sharks.
sharks birds and squid especialy
Sometimes sharks.
risso dolphins sharks and beluga whales eat octopuses