I read a book called “In the Heart of the Sea” about a whaling ship, the Essex, that was sunk by a whale and formed the basis of “Moby Dick.” There is a long dissertation in that book about resorting to canabalism to survive and that it was pretty common. In the Essex matter, a few survivors in a whaling boat actually chose lots to decide who would be eaten and then they chose lots to see who would kill that person. Pretty interesting stuff, albeit grim.
Yep, I actually have that book on my shelf. Thanks!