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Hydra (genus)

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Hydra ( HY-drə) is a genus of small freshwater hydrozoans in the phylum Cnidaria. They are solitary, carnivorous jellyfish-like animals, native to the temperate and tropical regions. The genus was named by Linnaeus in 1758 after the Hydra, the mythical many-headed beast that was defeated by Heracles, as when the animal has a part severed, it will regenerate much like the mythical Hydra's heads. Biologists are especially interested in Hydra because of their regenerative ability; they do not appear to die of old age, or to age at all.

Hydra (genus) - Wikipedia Jump to content From Wikipedia, the free encyclopedia Genus of cnidarians {{cite WoRMS|vauthors=Schuchert P |year=2011|title=''Hydra'' Linnaeus, 1758|db=hydrozoa|id=267491|access-date=2011-12-20}}</ref>"},"subdivision_ranks":{"wt":"Species"},"subdivision_ref":{"wt":"<ref name=worse/>"},"subdivision":{"wt":"{{Collapsible list \n |* ''Hydra baikalensis'' <small>Swarczewsky, 1923</small>\n |* ''Hydra beijingensis'' <small>Fan, 2003</small>\n |* ''Hydra canadensis'' <small>Rowan, 1930</small>\n |* ''Hydra cauliculata'' <small>Hyman, 1938</small>\n |* ''Hydra circumcincta'

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