green hydra

The green hydra (Chlorohydra viridissima) is a freshwater invertebrate animal belonging to the phylum Cnidaria and the class Hydrozoa. Its body is a translucent tube, up to about 30 mm long, with a mouth at one end surrounded by 4 to 25 tentacles. The green color comes from chlorophyll-bearing plastids within its cells.123

Hydras reproduce asexually through budding, where a small part of the adult grows into a new, genetically identical individual. They can also reproduce sexually, with individuals typically being male or female, though some are hermaphroditic. These animals feed on small invertebrates and lack a jellyfish stage in their life cycle, existing solely as solitary polyps.24