Drosophila buzzatii 158 Drosophila 108 Animals 80 article 76 Cactaceae 62 Drosophila koepferae 56 animal 46 fly 44 nonhuman 42 Argentina 38 female 38 Diptera 36 Drosophilidae 36 body size 36 Male 34 Opuntia 32 Wing 32 Female 30 genetic variability 30 male 30 forelimb 28 Animalia 26 genetics 26 host plant 26 Variation (Genetics) 24 histology 24 Body size 22 Cactophilic Drosophila 22 adaptation 22 population genetics 22