Female animal female 577 male Male 567 Animals 545 article 272 physiology 244 Argentina 196 nonhuman 175 genetics 163 growth, development and aging 156 metabolism 134 controlled study 131 Article 118 classification 112 adult 107 animal experiment 96 priority journal 93 anatomy and histology 88 human 83 histology 82 parasitology 80 Humans 63 body size 60 mouse 58 Ecosystem 56 ecosystem 56 animal tissue 55 Mice 54