中生代~生物

資料來源:
https://www.youtube.com/watch?v=ggTobYPFp-s
https://www.youtube.com/watch?v=g0lVvlTSE0I
https://www.youtube.com/watch?v=wjCiQg9QDmc
https://www.youtube.com/watch?v=FtpywjJSJsk

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