In the distant future, humans will form caste systems based on the rareness of the animals whose poop we eat.

不久的将来，人们就会依据食用粪便动物的缺稀性来建立等级制。

youdao

In the distant future, humans will form caste systems based on the rareness of the animals whose poop we eat.

不久的将来，人们就会依据食用粪便动物的缺稀性来建立等级制。

youdao