Length:
2:01
When attacked by a sea star, an anemone called Stomphia releases itself and contracts its body to swim away.
Cnidarians: Anemone Swims Away From Sea Star
Next Generation Science Standards for this Video
An anemone uses its nerves and muscles to release from the bottom and swim away.
The sea star, Dermasterias, often preys on the anemone, Stomphia. As a behavioral adaptation to avoid this predation, Stomphia has evolved the ability to release from the bottom and swim away. This is unusual behavior for an anemone.