Hydra, light micrograph. Hydra are small freshwater animals of the phylum Cnidaria and class Hydrozoa. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / CHOKSAWATDIKORN |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |