[A.J.Armitage]

A question: would things like biting the inside of your lips or sucking the blood from a wound to prevent infection put human (your own) protein in your stool? I suspect the answer is yes, but not in the amounts found, but I'm still curious.

[blam]

"A question: would things like biting the inside of your lips or sucking the blood from a wound to prevent infection put human (your own) protein in your stool? I suspect the answer is yes, but not in the amounts found, but I'm still curious."

I expect digestive juices would destroy the DNA but, I don't know. I was wondering how they kept the DNA of the eater seperated from the DNA of the eaten. This may explain that...don't know though.

[Rytwyng]

would things like biting the inside of your lips or sucking the blood from a wound to prevent infection put human (your own) protein in your stool?

Yes, and so would sniffing back a nosebleed, or internal bleeding from various parasites. However, the researchers found human MUSCLE protein in the coprolites -- which can only be from cannibalism.