To support his hypothesis he pointed out that several fossils of the oldest known bird, archaeopteryx, lack feathers.

  • 诺莱尔说:“羽毛确实是很难保存下来的东西。”为了证明这种观点,他指出,已知的最早的鸟类&始祖鸟的一些化石也没有羽毛。

  • 互联网摘选 2025-01-19 23:46:48

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