Male animal article female male 276 Female 268 Animals 246 physiology 106 Argentina 92 genetics 80 histology 73 growth, development and aging 59 nonhuman 52 parasitology 50 metabolism 47 classification 44 controlled study 39 Triatoma 33 Hexapoda 31 disease carrier 31 human 31 Animal 30 Animalia 30 Insect Vectors 29 Triatoma infestans 29 isolation and purification 29 sexual behavior 29 animal experiment 28 Drosophila 27 priority journal 27