55-million-year-old fossil bird reveals how trogons evolved their unusual feet; reversed toe came before the big toe shrank
September 29, 2026
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A fossil of Daniatrogon kochi, discovered in Denmark, provides insights into the evolution of trogon feet. Researchers found that the trogons' unique foot morphology developed gradually over time. The fossil also shows changes in the shape of their beaks, whi
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