Two Octopuses Making Babies

The octopus you can see clearly is reaching his third arm into the den of female. You can see the funnel of the female. There's a fish in front of her eye. The male injects his spermatophore into the female. She decides whether and when to let it fertilize her eggs. It's a big decision. After fertilizing her eggs she never eats again. She tends the eggs and then dies.