When a hydra’s body splits into two or more segments, a new hydra grows from each segment. This is called regeneration. Hydra is divided in two ways. Longitudinal division and transverse division. Dr. Siddiq Publications
(i) Longitudinal division: When the hydra body is divided longitudinally into two or more segments, a new hydra is formed from each segment.
(ii) Transverse division: When the body of hydra is divided transversely into two or more segments, new hydra originates from each segment.