Across cultures and time periods, there's evidence of survival cannibalism, when people living through a famine, siege or ill-fated expedition had to either eat the bodies of the dead or starve to death themselves.
Sepanjang budaya dan waktu, ada bukti hidup dari praktik kanibalisme. Saat melakukan ekspedisi, kemudian kelaparan, terancam, atau gagal, manusia harus makan bagian tubuh mayat atau memilih mati kelaparan.