![Birdsenjoyarelativelyslowrateofextinctionbutanewstudysu...]( "Birdsenjoyarelativelyslowrateofextinctionbutanewstudysu...")
- 问题详情：Birdsenjoyarelativelyslowrateofextinctionbutanewstudysuggeststhatratemightbeseverelyunderestimated(低估).Evenworse,ifhumanactionscontinue,birdextinctionratescouldskyrocketand12percentoftheknownbirdspecies(物种)couldbedyingoutbytheendofthecent...
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