Hydra (genus)
Genus of cnidarians
Nº Q192290 ★★★
Rare · Nature
Hydra (genus)
Genus of cnidarians
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.
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From Wikipedia
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.
Text: Wikipédia, CC BY-SA 4.0. · Image: Oinari-san (Public domain) ·
