Jan Hamrsky:
Freshwater cnidarian Brown hydra (Hydra oligactis), producing bud on the body wall
Jan Hamrsky:
Freshwater cnidarian Brown hydra (Hydra oligactis), producing bud on the body wall
Jan Hamrsky:
Freshwater cnidarian Brown hydra (Hydra oligactis), extending its tentacles
Jan Hamrsky:
Freshwater cnidarians Brown hydra (Hydra oligactis), polyps attached to the stone
Jan Hamrsky:
Freshwater hydra (Hydra viridis) attached to a piece of submerged wood
Jan Hamrsky:
Freshwater hydra (Hydra viridis) attached to a piece of submerged wood
Jan Hamrsky:
Brown hydra (Hydra oligactis) with a mayfly nymph prey enclosed within the gastrovascular cavity
Jan Hamrsky:
Brown hydra (Hydra oligactis) with a mayfly nymph prey enclosed within the gastrovascular cavity