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Male redback spiders invite cannibalism through a ‘self-sacrificial somersault’ during sex – but why?

Environment | The Guardian Aug 11, 2026 · 11:01 PM 👁 0 views ❤ 0 likes

New research sheds light on the genetic basis of the venomous insect’s ‘weird mating behaviour’ Follow our Australia news live blog for latest updates Get our breaking news email , free app or daily news podcast If you think you’ve had a bad one-night stand, spare a thought for the male redback spider, whose sole reproductive partner eats him after sex. Male redbacks appear to invite this cannibalism through a “self-sacrificial somersault”, with new research shedding light on the genetic basis of the behaviour. Continue reading...

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