Researchers from the Cell and Developmental Biology group at the Institute of Zoology at Kiel University are studying one such simple multicellular organism, the freshwater polyp Hydra.

View Full Profile. Learn about our Editorial Policies. In the freshwater polyp Hydra vulgaris, a single population of stem cells is responsible for both gamete production and the sea anemone’s ...

HEADY Role in Hydra Hydra, a multicellular, lower-eukaryotic, freshwater polyp, is known for its developmental idiosyncrasies. Slice off its head or its foot, and within two days either regenerates ...