Eachyearabout10000to的知识精选

Eachyear,about10,000to100,000animalspeciesdieoff.Theyjo...
问题详情:Eachyear,about10,000to100,000animalspeciesdieoff.Theyjointhecountlessspeciesthathavegoneextinct(灭绝)overthecourseofEarth'shistory-andextinctionmeansforever.Atleastitusedto.Scientistsarenowcl...
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