JeremyKerraresearche的精選

問題詳情：JeremyKerr,aresearcherattheUniversityofOttawainCanada,andhiscolleaguesanalyzedmorethan400,000observationsofbumblebeespeciescollectedinNorthAmericaandEuropefrom1975to2010.Whentheresearchersreco...