A devilfish octopus eats crabs and other things.
Whales will only eat octopus if they are starving and the octopus is a baby otherwise they will eat fish also depending on the type of whale. A sperm whale's main food is giant squid.
A shark or other big fish eat a octopus.
Fish and squid and octopus
Fish
Mimic octopus' have a mixed diet of fish,crabs,sand.
A 'octopus's' predator for example large fish and other predators
They eat small fish, crabs, and shrimp.
Some eat smaller fish, invertibrates, Plankton, Algae... etc.
cats,fish
octopus eat crabs, clams, snails and small fish.
they eat small crabs and they eat about every thing all the other octopus eat
My answer in no because according to the video from national geographic channel adult tortoises maybe eat octopus but its diet eats jellyfish, baby turtles get eaten by octopus.