animal article physiology Animals 716 metabolism 274 nonhuman 252 male 238 Male 228 female 214 controlled study 198 Female 196 drug effect 186 priority journal 150 genetics 136 human 120 Argentina 118 Animalia 114 animal experiment 106 Humans 104 animal cell 104 mouse 104 Mice 98 rat 88 Rats 86 comparative study 84 cytology 84 Hexapoda 82 animal behavior 82 animal tissue 82 time 82