Genetics triggers male black widows to blackflip into death, study finds

Дата публикации: 11-08-2026 23:01:00

A wild cannibalistic sexual behavior in spiders has a simple genetic explanation, new study finds. A wild widow spider behavior involving a backflip …

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A wild widow spider behavior involving a backflip into death during sex has a simple genetic explanation, new research finds.

Male redback spiders (Latrodectus hasselti) — Australia's version of black widows — flip into females' fangs while mating in order to make sex last longer. They also constrict their abdomens — a maneuver that seems to help them survive the experience of being eaten alive long enough to finish transferring their sperm. Then, they break off their sperm-transferring organs, known as pedipalps, into the females like a cork on a bottle, which prevents other males from inseminating them.

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