Norbert Wu / Scuba diver and salp chain showing asexual reproduction of salps, southern California

Georgette Douwma / Comet arm of starfish {Linckia multifora} asexual reproduction. Maldives

Georgette Douwma / Multipore starfish (Linckia multiflora), asexual reproduction and arm regeneration, severed arms commonly regenerate new individuals. West Papua, Indonesia. Indo-West Pacific.

Jan Hamrsky / Freshwater sponge (Spongilla lacustris), with visible gemules, gemules are used in the asexual reproduction of sponges, Europe, November, controlled conditions

Jan Hamrsky / Freshwater sponge (Spongilla lacustris), with visible gemules, gemules are used in the asexual reproduction of sponges, Europe, November, controlled conditions

Alex Hyde / Endive Pellia liverwort (Pellia endiviifolia) in centre growing through Common Liverwort (Marchantia polymorpha), the latter bearing cups containing gemmae (used in asexual reproduction). Lathkill Dal...

Will Watson / Circular mass of Duckweed (Lemna minor) formed as a consequence of vegetative/asexual reproduction located on a pond, Herefordshire, England.

Sue Daly / Plumose anemone (Metridium senile) Channel Islands, UK June

Georgette Douwma / Luzon / Orange Starfish (Echinaster luzonicus) comet. Asexual reproduction. From one arm the starfish can regenerate a new body. Rinca, Komodon National Park, Indonesia. digital capture.

GEORGETTE DOUWMA / Sea star with an enlarged arm which is growing into a complete new sea star through asexual reproduction, Papua New Guinea

Juergen Freund / Mangrove propagule floating in shallow water, Queensland, Australia

Kim Taylor / Green hydra {Hydra viridissima} budding. UK.