
How animals, people, and rituals created Teotihuacán
Discovery of nearly 200 animals remains is among the most abundant mass cases of animal sacrifices found in ancient metropolis.

UCR medical school develops new curriculum to address substance use crisis
Nearly 6,000 opioid-related overdose deaths occurred in California in 2021, many due to fentanyl, a synthetic opioid. To address the crisis, a team of researchers in the School of Medicine, or SOM, at the University of California, Riverside, plans to develop and implement a curriculum that offers education on substance...
1,700-year-old spider monkey remains discovered in Teotihuacán, Mexico
The complete skeletal remains of a spider monkey — seen as an exotic curiosity in pre-Hispanic Mexico — grants researchers new evidence regarding social-political ties between two ancient powerhouses: Teotihuacán and Maya Indigenous rulers. The discovery was made by Nawa Sugiyama, a UC Riverside anthropological archaeologist, and a team of...

Why weren’t New World rabbits domesticated?
Archaeologists find the answer in rabbit social behavior