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This Sea Snail Changes Sex During Its Life

The common slipper limpet, Crepidula fornicata, changes sex in one direction: it begins life as a male and may later become female. The timing is not determined by size alone: experiments show that social context, including physical contact with a female, can delay the change. At the same time, particular environmental measures do not always explain which individuals have already changed sex. The illustration is AI-generated.

original AI-generated natural-history illustration of common slipper limpets stacked on a rock. Created 2026-10-13 with the image-generation tool from the prompt: “Create a scientifically plausible marine natural-history illustration of common slipper limpets (Crepidula fornicata) attached in a small vertical stack to a rock in shallow coastal water. Show a larger bottom individual and smaller individuals stacked above, with accurate cap-shaped shells. Natural muted seabed colors, crisp field-guide/editorial painterly style, clearly an illustration not a photograph, no labels, no text, no watermark, horizontal 3:2 composition. Do not depict sex change visually or label individuals as male/female.” Synthetic illustration; not a photograph or evidence of a specific animal. No third-party license or attribution applies.

original AI-generated natural-history illustration of common slipper limpets stacked on a rock. Created 2026-10-13 with the image-generation tool from the prompt: “Create a scientifically plausible marine natural-history illustration of common slipper limpets (Crepidula fornicata) attached in a small vertical stack to a rock in shallow coastal water. Show a larger bottom individual and smaller individuals stacked above, with accurate cap-shaped shells. Natural muted seabed colors, crisp field-guide/editorial painterly style, clearly an illustration not a photograph, no labels, no text, no watermark, horizontal 3:2 composition. Do not depict sex change visually or label individuals as male/female.” Synthetic illustration; not a photograph or evidence of a specific animal. No third-party license or attribution applies.