I’m confused, do the animals see each other as people?

yea i had the same question im at chap 63 and it seems like they can shift?

I finished and I’m still confused. I probably skipped something

Prof accidentally touch or smell addictive drugs on grass or else thats why he is hallucinating thats why he see thheir form as human and also understand them, i mean he also see them as a human and touch them as a human, they're not transforming.