Answer: Reproduction in anemones is usually found to be asexual. Anemones reproduce asexually by either longitudinal fission or by pedal laceration. In pedal laceration, a new anemone is formed once a grown anemone moves away from an area, leaving behind some fragments of its pedal disc. When this happens, regeneration occurs and a brand new anemone is made from the leftover pedal pieces of the other anemone.
While asexual reproduction is typical of most anemones, sexual reproduction can occur as well. Anemones such as Urticina crassicornis are hermaphroditic animals, meaning that an individual has both male and female reproductive systems. However, they typically produce only eggs or sperm at any one time. The eggs are fertilized inside the gastrovascular cavity of the animal. Development of the eggs will take place either in the surrounding ocean waters, or in the septal chambers of the animal. The result of this process is a swimming planula larva which is either planktonic (feeding on its own), or lecithotrophic (receiving its needs from the yolk).
A juvenile anemone completely lacks tentacles, and therefore remains as a free-swimming ciliated polyp until they form. As the individual grows, it will eventually settle on some substrate and attach by its pedal disc. Finally, the young anemone will form tentacles, and remain in this polypoid form throughout the remainder of its life. If this polyp decides to move (be it to escape predation or find a new habitat), it may leave some of its pedal disc behind, and the entire life cycle will start over again.
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