Pássaros que emitem luz?

Aves-do-paraíso, conhecidas por suas cores vibrantes, revelaram uma característica inesperada: a biofluorescência.

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Essas aves captam luz ultravioleta e a reemitem em tons visíveis, criando um brilho esverdeado perceptível.

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Esse fenômeno já foi identificado em peixes e anfíbios, mas ainda é pouco estudado em aves.

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Pesquisadores analisaram 45 espécies e encontraram biofluorescência em 37 delas, sugerindo um papel na seleção de parceiros.

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O brilho é mais evidente nos machos, que já usam cores chamativas para atrair fêmeas durante o acasalamento.

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Algumas espécies não apresentaram biofluorescência, possivelmente por terem comportamento monogâmico.

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Além da reprodução, o fenômeno pode influenciar camuflagem e hierarquia entre os machos na floresta.

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Pesquisadores investigam se as aves conseguem perceber e interpretar os sinais biofluorescentes no ambiente.

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O estudo enfrenta desafios, pois essas aves vivem em regiões isoladas e de difícil acesso.

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A descoberta pode revelar novos aspectos sobre evolução e comunicação visual nas aves-do-paraíso.

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