- Urination, like sneezing, is ‘contagious’ in primates, including humans Earth.com
- A new study finds peeing is contagious among chimpanzees : Short Wave NPR
- Do Chimps Who Urinate Together Stay Together? The New York Times
- ‘Contagious’ peeing may have deep evolutionary roots, chimp study suggests Livescience.com
- After 600 hours of observation, scientists think they know why chimps pee together The Jerusalem Post