达尔文想：“这么说这些树原来长在海边，海水上涨淹没了它们，后来海底上升了……。”
“So those trees once stood by the sea,” thought Darwin. “The sea came up and covered them.
在《物种起源》一书中，达尔文将退化的器官认定为进化的证据，它们的存在帮助我们定义和形成了人类的进化树。
In on the Origin of Species, Charles Darwin used vestigial organs as evidence for evolution, and their presence has helped define and shape our phylogenetic trees.
达尔文的生命进化之树也处在进化之中。
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