Female Male female 336 male 336 physiology animal 238 Animals 232 article 153 adult 123 human 120 Humans 106 controlled study 101 Article 78 Adult 77 Argentina 73 nonhuman 72 priority journal 61 metabolism 58 genetics 55 growth, development and aging 51 animal experiment 42 Young Adult 41 reproduction 37 sexual behavior 36 young adult 36 human experiment 34 Reproduction 33 Sexual Behavior, Animal 32 anatomy and histology 32 histology 32