What is a Hydra? Amazing creature with remarkable regenerative capability!

Hydra is a genus of tiny fresh-water organisms that are classified under the phylum of Cnidaria. Hydra has a cylindrical, radially symmetric body from 2 to 20 mm in length. It is visible to the naked eyes when fully extended. Typically, Hydras remain attached to some underwater objects, waving their tentacles slowly with the current. This is why the hydra is often mistaken for a plant or alga. However, it is a bona fide animal! Hydra is characterized by its tentacles around the mouth opening. These tentacles can greatly extend to catch the prey or use for locomotion. Each tentacle is clothed with many stinging cells. Upon contact with prey, the contents of the stinging cells are explosively discharged, firing stings that can paralyze small animals. Biologists are especially interested in Hydra because of their remarkable regenerative ability – they do not appear to die of old age, or to age at all. In this video, you will learn about this fantastic creature in detail. I will