二叠纪末大灭绝为何被称为“大死亡”？
Why is the end-Permian extinction called 'the Great Dying'?
约2.52亿年前的二叠纪末事件消灭了约90%的海洋物种和70%的陆生物种，由大规模火山喷发引发气候与海洋缺氧剧变，是史上最严重。
The end-Permian event ~252 million years ago killed ~90% of marine and ~70% of terrestrial species, driven by massive volcanism causing climate and ocean-oxygen collapse—the worst ever.
难度 专业 · 适合 大众
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Urry 等,《Campbell Biology》第11版,Pearson,2017
L. A. Urry et al., Campbell Biology, 11th ed., Pearson, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-0-13-409341-3 (11th ed., Pearson)
#二叠纪 #大死亡 #火山
白垩纪末灭绝除了恐龙还消灭了什么？
Besides dinosaurs, what else did the end-Cretaceous extinction remove?
这次事件还重创了菊石、许多海洋爬行动物与浮游生物，同时让哺乳动物和早期鸟类得以壮大，重塑了陆地与海洋生态。
It also devastated ammonites, many marine reptiles, and plankton, while letting mammals and early birds flourish, reshaping land and sea ecosystems.
难度 进阶 · 适合 初中(12-15)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Urry 等,《Campbell Biology》第11版,Pearson,2017
L. A. Urry et al., Campbell Biology, 11th ed., Pearson, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-0-13-409341-3 (11th ed., Pearson)
#白垩纪 #菊石 #生态
地球历史上发生过几次“大灭绝”？
How many 'mass extinctions' has Earth had?
公认的“五大”大灭绝包括奥陶纪、泥盆纪、二叠纪、三叠纪和白垩纪末事件，每次都让超过一半的物种在相对短时间内消失。
The 'Big Five' mass extinctions—Ordovician, Devonian, Permian, Triassic, and end-Cretaceous—each wiped out over half of species in a geologically short time.
难度 入门 · 适合 小学高段(9-12)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Urry 等,《Campbell Biology》第11版,Pearson,2017
L. A. Urry et al., Campbell Biology, 11th ed., Pearson, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-0-13-409341-3 (11th ed., Pearson)
#大灭绝 #物种 #地质
为什么说我们可能处在“第六次大灭绝”？
Why might we be in a 'sixth mass extinction'?
当前物种消失速度远高于自然背景速率，主要由栖息地破坏、气候变暖和污染造成，科学家据此警告第六次大灭绝正在进行。
Species are vanishing far faster than the natural background rate, mainly from habitat loss, warming, and pollution, leading scientists to warn of a sixth mass extinction underway.
难度 入门 · 适合 幼儿(3-6)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
E. O. Wilson,《The Diversity of Life》Harvard University Press,1992
E. O. Wilson, The Diversity of Life, Harvard University Press, 1992
独立核验依据 · Independent verification: 核验依据 2 OPENLIBRARY 标识 /works/OL1378177W：The Diversity of Life（按
#第六次灭绝 #生物多样性 #人类