Last Updated：2025/11/22
Sentence
化石記録を調べている研究者たちは、突然の大量絶滅が海洋生態系を一変させたという証拠を発見した。
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Scientists studying fossil records found evidence that a sudden mass extinction reshaped marine ecosystems.
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Scientists studying fossil records found evidence that a sudden mass extinction reshaped marine ecosystems.
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Related words
mass extinction
Noun
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uncountable
Japanese Meaning
大量絶滅：短期間に地球上の生物種の約75％が失われるような、急激かつ大規模な生物多様性の喪失現象。 / 地質学および進化論の観点から、比較的短い地質時代（約300万年以内）において、一度の大規模な滅亡事象により多数の種が絶滅する現象を指す。
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