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Halfway house

发布时间:2019-03-07 06:03:17来源:未知点击:

Two fossilised jawbones unveiled this week in London could provide the missing evolutionary link between fish and land animals. Excavated from rocks in Latvia and Estonia, the 370-million-year-old fossils are from “a transitional half-fish, half-amphibian”, says Per Ahlberg of the Natural History Museum in London. “The most important thing is what happens when the paired fins turn into arms and legs,” he says,