Beside 99% of genes, we share instinct to eat poop.
Human babies instinctivly take poop from the ground an eat it, if available.
Gorillas do the same:
This was recorded at the San Diego Zoo, January 20th 2012. The gorilla had a hard time pooping, and ran around with a dingleberry. Finally he sat down, pulled out an ENOURMOUS shit then started playing with it, and then eating it. Later, his son stole some and ate that too.
Learn from our brothers!
Chimps do the same:
Elephants do it:
Almost all mamals have instinct to eat poop.
Almost all predators consume intestines and poop of their pray.