animal article Animals 716 metabolism 357 physiology 334 male 256 nonhuman 255 female 246 Male 245 Female 232 genetics 192 Animal 187 controlled study 178 drug effect 176 Argentina 161 priority journal 144 mouse 137 human 136 rat 136 Mice 133 Rats 133 chemistry 125 Humans 114 animal experiment 114 growth, development and aging 109 animal cell 108 Support, Non-U.S. Gov't 101 enzymology 100 Animalia 88 histology 86