Now, you don't get taught this in engineering school, , and it's not really the kind of thing you want to get wrong, so he could have spent months talking to vets, doing the research, tweaking the spreadsheet.
No enseñan esto en la facultad de ingeniería y no es el tipo de cosas en las que uno quisiera equivocarse, podría haber pasado meses hablando con veterinarios, investigando, ajustando la hoja de cálculo.