科学与环境
What a 99-million-year-old feather is telling us about the evolution of flight
来源: Phys.org - latest science and technology news stories · 发布于
Long before birds took to the skies, dinosaurs were already sporting feathers. But exactly how they evolved into the sophisticated structures that allow birds to fly remains something of a mystery. Now, the discovery of the longest feather ever found preserved in amber is providi
Long before birds took to the skies, dinosaurs were already sporting feathers. But exactly how they evolved into the sophisticated structures that allow birds to fly remains something of a mystery. Now, the discovery of the longest feather ever found preserved in amber is providing some new clues.
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