article male Male 272 Animals 220 female 202 genetics 170 nonhuman 170 Female 160 animal 150 controlled study 150 priority journal 124 human 104 Humans 100 animal experiment 82 adult 76 Argentina 74 genetic variability 68 animal tissue 66 metabolism 62 Mice 56 Adult 54 Animalia 54 phenotype 52 animal cell 50 mouse 50 physiology 50 Drosophila melanogaster 48 Phenotype 42 animal model 38 genotype 38