Animals hearing slaughterhouse
screams
shivering shaking
quivering quaking
trembling in fear
whenever humans are near
*
Footnote:
Video of trembling piglets... for intelligent mammals, being around killer humans creates a constant fear.
https://www.eurekalert.org/multimedia/773758
A cow trying to escape
https://twitter.com/OtherCosmonauta/status/1457084443512893443/photo/1