Do octopus give birth

Octopus reproduce in a very unique way. When they are ready to mate, the male octopus inserts a special arm called the hectocotylus, which is filled with sperm cells, into the mantle cavity of the female. The female's mantle cavity is filled with eggs which are then fertilized and are attached to her lair where she guards them until they hatch. Male octopuses die about a few months after mating, and female octopuses die shortly after the eggs have hatched.