【英文字幕】关于恐龙灭绝的化石证据 | NOVA PBS

[视频作者] Hayley学地理

[视频时长] 2:51

[视频类型] 科学科普

https://www.youtube.com/watch?v=4UdM4i54nIE&list=RDCMUCjHz5SVHeMT0AViCYZvsGDA&index=3 A mass of fossilized fish, uncovered in North Dakota, appear to preserve the catastrophic fallout of the asteroid impact that wiped out the dinosaurs.