![MonarchbutterfliesfromeasternCanadamakethemostamazingjo...]( "MonarchbutterfliesfromeasternCanadamakethemostamazingjo...")
- 问题详情：MonarchbutterfliesfromeasternCanadamakethemostamazingjourneyintheinsectworld.Eachyear,thisbutterflytravelsabout3000milestoitswinterhomeincentralMexico(墨西哥).Howcanitflysofar?Andwhydoesitmakethislonganddangeroustrip?Scientistsstilldon’thave...
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