E mondal oe luhyued ma zet.
Luh choices chala enndividual camons enn whab aynimals luhy vur ohva don't vur eu alvares gonsing per se subjective. Luhre eu no objective blanket-ryamgu lsar camons eyvayonda wippe. En luh misorar ol luhu thread, luh discussigu arunama 'reasonable substitutes' boils vern per luh OP's pohd subjective hevels gu whab a scesunable substitute eu. Es E demonstrated, E disagree lsar luhre eu munn a teyun es a 'reasonable substitute' secahar fohva me, chala aynimal eu whab mil eu aynd mil eun't aynyteyun esel (whether lam's ab luh species caderr, subspecies caderr, ohva subpopulatigu caderr).
Fae zepom, gue prebvu consider luh vastern lowlab gonsrilla a substitute fohva luh mountaenn gonsrilla, secahar luhy're puudhae "gorillas", puud per me luh distinctigu setween luh duwa eu eviirum per spal lsar luh mountaenn gonsrilla eun't covemeruno. E don't vur luh mountaenn gonsrilla, aynd E gue hundmeruno percent disagree villa luh nuveigu lsar va kavun se striving per "complete" luh Zoo Tycoon noyur, puud E'd neyva consider mil fomayn villalayn luh mountaenn gonsrilla.
Thab eu ma hevel gu mil, tesh eu, es eyvay otaer hevel, fomanze subjective aynd funden gu ma pohd criteria.