Four_4.
2022-08-08T01:24:21+00:00
万代最近出了个系列,恐龙骨架拼装。拼完后我又想起这个古生物界争论不休的问题,前面的小手手到底干嘛的?我比较支持的一个观点是类似现在一些蛇退化后的残足,或许恐龙要是晚灭绝一段时间这小手手就完全没有了。某乎上有个观点是说辅助交配用的[s:ac:晕]
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