What do Octopi eat?

Octopi eat small crabs and scallops, plus some snails, fish, turtles, crustaceans (like shrimp), and other octopi. 

They catch prey with their arms, then kill it by biting it with their tough beak, paralyzing the prey with a nerve poison, and softening the flesh. They then suck out the flesh. 

Octopi hunt mostly at night. Only the Australian Blue-ringed octopus has a poison strong enough to kill a person.

This is a picture of a blue ringed octopus: