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[Slow explanation] Why are tropical creatures so colorful?
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If 99% of the Earth's living things become extinct, what species will rule? [Yukkuri Science]
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[Slow explanation] Why is there no soil on celestial bodies other than Earth? - The day when soil...
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丸のみ対決！凶暴なワニと戦った大蛇の末路がヤバい…（ずんだもん×ゆっくり解説）
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