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For Two Days Each Year, These Drab Brown Toads Turn a Dazzling Neon Yellow—and Scientists Finally Know Why
Most of the year, male Asian common toads are a dull, muddy brown color. But when the first monsoon rains begin drenching their homes in India and southeast Asia, signaling the beginning of the frogs’ ...
Two Asian common toad couples mating in Karnataka, India. The yellow toads pictured are male and the brown toads are female. Susanne Stückler As the first monsoon rains in India and southeast Asia ...
Every year, thousands of common toads, frogs and newts awaken from their winter hibernation and make the perilous journey back to their ancestral breeding ponds. On mild, damp evenings between January ...
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 ...
The color change, driven by hormones, seems aimed at preventing males from accidentally mating with each other. Two Asian common toad couples mating in Karnataka, India. The yellow toads pictured are ...
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