Hydra vulgaris, the fresh-water polyp, is a small freshwater hydroid with length from 10 mm to 30 mm and width about 1 mm. See more

H. vulgaris is often used, like many hydra, as a model organism for morphallactic regeneration because they are easy to care for, requiring minimal direct care, and reproduce relatively quickly. It is reported that they do not undergo senescence, making them See more

This species can reproduce in three ways: sexual reproduction, budding, and indirectly through regeneration.
When hydra … See more

The hydra have four to twelve tentacles that protrude from just outside the mouth. They feed by extending their tentacles and waiting for food to touch the tentacles. They then bring the food to their mouth, ingest and digest the organism. Anything that cannot be … See more

Having the simplest nervous system of any known organism, the neurology of H. vulgaris is of interest to the neuroscience community, in the … See more