Why Indian Bullfrog Males Turn Bright Yellow in the Monsoon, and What That Colour Costs Them
The change happens fastFor most of the year, the Indian bullfrog (Hoplobatrachus tigerinus) is a forgettable shade of olive-green or brown, blending into the muddy margins of ponds and rice paddies across the subcontinent. Then the first monsoon rains arrive, and the males change within days. The dorsal skin shifts…
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