Two male blennies in a territorial fight over a nearby female.

Pelagic nudibranchs mating in the open ocean.

Male and female frogfish displaying spawning behaviour.

Larval lobster carrying four larval acorn worms which are one of its food sources.

Female octopus guarding its eggs.

Moyer’s dragonets rising into the water column during spawning.

A female brittle star releasing its eggs during spawning.

Arrow crab releasing its eggs into the current.