Shark sometimes
Fish and squid and octopus
An octopus or squid
They eat Fish , squid ,octopus ,and crabs. narwhals are awesome!
Dolphins eat small fish, squid and octopus.
yes they do, they also eat squid and small reef fish.
I don't know for certain if squid can eat octopus..but, it is known and documented that some species of octopus prey and feed on other octopus...so it would seem that large octopus would probably eat smaller squid and large squid would probably eat small octopus ( if they are caught and available) in the area they are hunting in. About two years ago, a Japanese scientist and film maker recorded a giant squid with a tentacle caught on their hook that I believe had fish bait? It could have been octopus bait? whatever it was, it was FREE FOOD for the squid ( which dropped the tentacle to get free of the hook). *A rule of thumb," Most animal consumers will hunt and prey on animal food that is easily caught. They tend to hunt prey they do not have to fight hard with since there are a 'lot of fish in the sea'." (smile) Marjorie Anne Wallace, science teacher
They eat fish,squid,shrimp,octopus,worms,small crabs, and clams
The squid and the cuttlefish. Wikipedia has more information, and a link is provided.
Hammerhead sharks eat a large range of items including fish, squid, octopus, crustaceans, and other sharks.
Humans
Fish, squid, crabs, lobsters, shrimp, sea urchins, and octopus.
sperm whales, deep sea sharks are squid predators