Semantics
sweat
Мокрые от пота бока лошади блестели.
The horse's sides shone wet with sweat.
perspiration
Он вытер пот с лица и шеи и повесил мокрое полотенце на солнце.
He wiped the perspiration from his face and neck and hung the damp towel in the sun.
This term is used in referring to both humans and animals.