Fossil feces tell ancient human cultures apart

Fossil feces tell ancient human cultures apart
On Vieques Island off the coast of Puerto Rico, two ancient South American tribes coexisted for more than 1000 years, from 5 to 1170 C.E. The Saladoids were known for their white and red painted pottery, as well as their openness to learning from other cultures. The Huecoids, in contrast, were myste...