Octupus is a ok food source as long as it is not calimari eich is also good but i do not know about squid :)
Yes octopus are hunted for food. Octopus are used in Mediterranean food, Caribbean food, and Asian food. Some octopus are eaten alive and animal rights groups argue that octopus should be killed humanly and then eaten.
Dolphins do eat octopus. They tend to violently thrash the octopus first avoiding its venomous beak. Although not a dolphins staple food some are quite adept at making this there staple food source of florida US coastal waters.
They get it from the oceans
When they are hungry
an octopus uses its tentacles to catch food
yes an octopus does produce waste becaus the food it process's has to come out
not to hunt it for food and medicine
Consumers
Monika Batorowski
Negative; not any octopus that I have ever heard of. Bottom-dwelling octopuses main source of food is crabs, polychaete worms, and other molluscs such as whelks and clams. As for open-ocean octopuses, they eat mainly prawns, fish and other cephalopods.
Whales eat octopus [sperm whales have giant octopus as a favorite food]. Octopus eat each other octopus. Humans eat octopus. Anything that can catch an octopus (that isn't easy) will eat it. Killer whales [or Orcas, a kind of toothed whale] eat octopuses.