Although capable of sexual reproduction, hydras reproduce most of the year by producing external asexual buds that eventually pinch off at the base and become new individuals. Hydra mainly feed on small aquatic invertebrates such as Daphnia and Cyclops. Some species of hydra exist in a symbiotic relationship with various types of green algae. The hydra offers the algae protection from predators and in return, the algae uses photosynthesis to give the hydra a food source.
Asexual Reproduction
In asexual reproduction, one individual produces offspring that are genetically identical to itself. These offspring are produced by mitosis. There are many invertebrates, including sea stars and sea anemones for example, that produce by asexual reproduction. Common forms of asexual reproduction include Budding. In this form, an offspring grows out of the body of the parent.