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ָͬһֲͬԱ֮IJֳ죨һΪԱﶼֳIJ죬һ˵Ҫֳָûֱӹϵڶ͡ɫż١
2016-4-11 11:52
鶯
鶯ָһЩʱںҪеԴΪIJ鶯ţޡܡ̡ʨ㡢ȡвֵĶҪЪԵĵ½ϢֳвҪ
2016-4-10 10:35
㣬ֱΪӢNorth Poleڳƺϵĵڵĵ㣬Ҳǵתڱཻĵ㡣ΧĵΪ
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Ӫ
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ָʹö̽ΪصңӰʦֱĵõĻ棬̬оලԡ۲ҰѰϡֵȡ
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п˶
п˶ˣӢLeague Against Cruel SportsһѪ˶Ķ︣֯ҲԾڽֹ졢ۺʹãĿĽֹҵԵ˶
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ΪǵϣĻҪ֣ʵʵӽǡ
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а¼
а¼Toarcian extinction˹ͺս-а¼Pliensbachian-Toarcian extinction٪¼Early Jurassic extinction٪ڵ˹ͺսа֮䣬Լ18300ǰ
2015-2-19 11:42
ױʱ
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Q
ݶQۣʷǰܵһӡŴĶQ237N 9849EͻɽɵľӰ졣
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ϿȺ
ϿȺӢEdiacaran biotaֳưϿȺ1946귢ڰĴϲϿEdiacaraɽصĩԶϵӵʯӢеĻʯȺʯȺ30ص㱻֡
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λڵϱļڣڵdzϺԽ˵ϳ겻ܻı㡣
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ǣice sheetָı50,000 km219,000 sq mi½أҲ½continental glacierĿǰеıԭϼ
2015-2-18 08:05
Ļչ
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̬ԣѧ
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ѧУ·(Lazarus taxon)˼Щڻʯ¼ͻȻʧֳֵ֡һ˼ָһֱ϶Ϊ֮֮ٴηֵ֡
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صǶļݶˬͬ仯Ķᾭ˵ձ仯ֵ걻ѩǣѩֵÿеĴʱرбѩ
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ôɱҵ
ôɱҵָôһһҵɱĻֻеѪ֯ǿҿ飬Ʒŷߵĵơ
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ࡢ붯︣
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Ƥó
˵ָƤݼóסëƤóڻ˹ʱ֮ǰ˽ëƤ˰(Ҳ뱣ӶëƤ)
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л
л2014424յʮȫ᳣ίԱڰ˴λ201511ʩС
2015-3-1 13:56
¼
¼Great Oxygenation Event Ҳֱ䣨Oxygen Catastrophe or Oxygen CrisisȲͬƺָԼ26ǰеͻȻӵ¼
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յڽ¼
յڽ¼Aptian extinctionǸڰѼڵСģ¼ΪԼ11700ǰ11600ǰԼǰյڽڡݵزе֤ݣյڽ¼ԺɽϴӰ죬½С
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ͣռ¼
-ռ¼Լ4.88ǰһηOȺ¼¼棬˹ĺͣռ͡
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άѭ
άѭMilankovich cyclesάǵĵѧҼѧ¬͢ά˶ۡάѧϸı˵ʡתǺĽȷģʽ
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ԭ
ԭice fieldС50,000 km²ıǵ½ءǻӵϿȱγɵĹɽ˱ԭ塣ԭҪȸɽСڱǣӽڱñ
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ö
öӢPermafrost㡢궳һѧʣָ㣨TundraˮĽ£0棩״
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ȫչҪ
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ݻ
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ϡﱣ
ϡ(rare animal)ȻΪϡкĶϸҶ˲̶ͬϡ⡣ΪˣϽÿ48նΪϡﱣա
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طʱҲֱáһָָǻڵΧĵϼһ˵ĺԼô˹ݡ˹Ų䡢ͱ˸ҵIJֵ
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ƹ٣ᆵ죩
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ֲȨ
ֲȨֲеȨһ⾭붯Ȩһۡ
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Ӣϳ
ӢϳˣӢϳϹᣬ1898614գɰ˷˹°أӢʱʱҪΧǽ˵о顢ԵʽԼɰǣ浽йʹ÷Ƿԡ
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ռ-־¼
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ʹ
ʹƺָھ5.3ǰĺʱڣ2,000ֻʯ˲ֵΡжġšһʱڳˡִĽϸߵԼֶԣǣһαسΪҲĿʼ
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ĩαʢ
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ñ
ñice capһ͵Բ״50000km2½һ㳣ڸԭ50000km2Ľǣice sheet
2015-2-18 08:34
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λĮɺ
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ѧ
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-٪¼
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Ⱥƿ
ȺƿЧӦ˿ƿָijȺͻȻɵɼ50%ϻٵ¼
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ұĻҪáѧоֵ½Ұ¼
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èɱ裺ɱִѲ2019
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