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About Ordovician results of 17
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06:37
Introduction to the Geologic Time Chart | Big History Project
43
B1
10:30
How Plants Caused the First Mass Extinction
13
B2
08:32
How the Squid Lost Its Shell
7
B1
06:10
Did This Ancient Asteroid Cause an Ice Age? | SciShow News
14
B1
11:58
From the Cambrian Explosion to the Great Dying
8
B1
04:05
How Many Mass Extinctions Have Happened On Earth?
3843
B1
04:27
The 6 Craziest Extinctions Ever
12135
B1
06:55
The Trouble With Trilobites
9
B1
14:34
Crash Course Big History: The Evolutionary Epic
204
B2
10:35
Earth's Evolution in 10 Minutes
15
B1
07:14
Death From Space — Gamma-Ray Bursts Explained
482
B2
21:27
The Insane Biology of: The Octopus
22
B2
09:44
The debate over the Anthropocene, explained
1
B1
10:19
When Fish Wore Armor
13
B2
09:18
The Whole Saga of the Supercontinents
13
B1
13:38
The History of Life on Earth - Crash Course Ecology #1
534
B1
21:33
古生物学者だけど「絶滅」について質問ある?| Tech Support | WIRED Japan
B2
1