If humans are animals then why isn't human waste called manure?

This page is a permanent link to the reply below and its nested replies. See all post replies »

it is in some countries,
https://www.sciencedirect.com/science/article/abs/pii/S2095311913604074
https://www.afr.com/world/asia/how-the-chinese-are-turning-human-waste-into-black-gold-20150202-133xdd