necrophagy

Many instances have occurred in history, especially in war times, where necrophagy was a survival behavior.

In humans, necrophagy is taboo in most societies.

Obligate necrophagy in a social bee.

"Why not try necrophagy?"

A few species shifted from coprophagy to necrophagy, and use small vertebrates carcasses as food for both adults and larvae.

They may be necrophagic, but this is based on an observation that one of their nests smelt of rotting meat and no direct observations of necrophagy have been recorded.

Christian vegetarians interpret that passage not as a free pass to kill for eating if the blood is supposedly excluded from alimentation, but as an invitation (rhetoric or not) to necrophagy.