Asexual reproduction
Sea anemones can reproduce asexually by splitting in two, a process called binary fission. This occurs when the sea anemone's body splits into two equal halves, each of which then grows into a new individual.
Sexual reproduction
Sea anemones also reproduce sexually by releasing eggs and sperm into the water. The eggs and sperm are then fertilized, and the resulting zygotes develop into larvae. The larvae then swim around until they find a suitable place to settle down and grow into new sea anemones.
Some sea anemones are simultaneous hermaphrodites, meaning that they have both male and female reproductive organs. Other sea anemones are sequential hermaphrodites, meaning that they change from male to female or vice versa at some point in their lives.
The reproductive cycle of sea anemones is often synchronized with the lunar cycle. Many sea anemones release their eggs and sperm during the full moon. This is thought to help ensure that the eggs and sperm are able to find each other and fertilize.