A viper’s tooth in ancient human poo hints at snake-eating rituals

A viper’s tooth in ancient human poo hints at snake-eating rituals

A viper’s tooth in ancient human poo hints at snake-eating rituals, Published online: 24 April 2019; doi:10.1038/d41586-019-01281-9

Prehistoric feces found in Texas includes scales, bones and a fang.