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

Nick Upton / Common liverwort (Marchantia polymorpha subsp. ruderalis) asexual gemma cups, growing on a garden path, Wiltshire, UK, July.

Nick Upton / Common liverwort (Marchantia polymorpha subsp. ruderalis) with stalked male antheridiophores and asexual gemma cups, growing on a garden path, Wiltshire, UK, July.

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.

Kim Taylor / Common hydra {Hydra vulgaris} budding. UK.

Kim Taylor / Common hydra {Hydra vulgaris} with offspring and a new bud forming. UK.

Kim Taylor / Common hydra {Hydra vulgaris} budding. UK.

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

Phil Savoie / Desert grassland whiptail lizard (Aspidoscelis uniparens) female with eggs, USA.

GEORGETTE DOUWMA / Comet arm of Orange starfish {Echinaster luzonicus} Asexual reproduction Moluccas

GEORGETTE DOUWMA / Comet arm of starfish {Asteroidea} asexual reproduction Sulawesi, Indonesia

Angelo Giampiccolo / Yellow sponges reproducing, Sanghaneb Reef, in the Red Sea, Sudan.

Angelo Giampiccolo / Yellow sponges reproducing on the Sanghaneb Reef in the Red Sea, Sudan.

Angelo Giampiccolo / Yellow sponges reproducing, Sanghaneb Reef, in the Red Sea, Sudan.

Juergen Freund / Starfish {Fromia sp} reproduces by shedding limb and duplicating itself. Indo-pacific

Georgette Douwma / Luzon starfish (Echinaster luzonicus) comet, regenerating new body from one of its arms as a process of asexual reproduction, on black background, Komodo National Park, Indonesia, Indo-Pacific.

Georgette Douwma / Luzon starfish (Echinaster luzonicus) comet, regenerating new body from one of its arms as a process of asexual reproduction, on black background, Komodo National Park, Indonesia, Indo-Pacific.

Andy Sands / Slime mould (Physarum robustum), in mature reproductive phase. Close-up of erupted fruiting bodies (sporangia), bearing thousands of spores. UK. The much smaller fruiting bodies in the bottom of the f...

John Cancalosi / Sonoran spotted whiptail (Cnemidophorus sonorae), two females mating, the females will then produced eggs parthenogenetically. Arizona, USA, July.

Nick Upton / Close up view of a Mexican hat plant / Mother of thousands (Bryophyllum diagramiontianum / Kalanchoe daigremontiana) with plantlets developing on leaf edge, cultivated, UK.

Nick Upton / Close up view of a Mexican hat plant / Mother of thousands (Bryophyllum diagramiontianum / Kalanchoe daigremontiana) with plantlets developing on leaf edge, cultivated, UK.

Nick Upton / Mexican hat plant / Mother of thousands (Bryophyllum diagramiontianum / Kalanchoe daigremontiana) with plantlets developing on leaf edges, cultivated, UK.

Nick Upton / Close up view of a Mexican hat plant / Mother of thousands (Bryophyllum diagramiontianum / Kalanchoe daigremontiana) with plantlets developing on leaf edge, cultivated, UK.