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the claim

Sexual selection evolves beautiful features to signal genetic quality

the verdict

SUPPORTED

the evidence backs this

confidence 89/100

Sexual selection drives the evolution of ornate and costly physical traits because they reliably signal underlying genetic quality and viability.

Evidence for · 2

Sexual selection: the handicap principle does work – sometimes

1987 · cited by 185

This paper demonstrates theoretical conditions under which costly handicaps can evolve and act as reliable indicators of viability.

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More for · 1

Sexual selection, social selection and individual quality : underlying mechanisms and ultimate consequences of ornamentation in a monomorphic species, the King penguin (Aptenodytes patagonicus)

cited by 0

This study supports the idea that costly ornaments can evolve through sexual selection to signal the individual quality of the bearer.

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first checked01 Aug 2026

judged → SUPPORTED · 8901 Aug 2026

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