IFLScience

For Just Two Days A Year, These Male Toads Turn A Jazzy Bright Yellow. Now We Know Why

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Smithsonian Magazine

For Two Days Each Year, These Drab Brown Toads Turn a Dazzling Neon Yellow—and Scientists Finally Know Why

For two days at the start of monsoon season on the Indian subcontinent, male Asian common toads (right) turn bright yellow, while females (left) stay brown. Stückler et al. / Ichthyology & Herpetology ...