Natural History Wanderings

NPR reports

Peeing together could be a way of syncing up individuals’ internal states, which could facilitate group behaviors, like keeping watch for predators. Or it could be a form of social bonding, forging specific connections between chimps. In the wild, whizzing as a group could be a predator-avoidance strategy, says Onishi. “By keeping urination localized, the group can reduce the risk of predators tracking them through the scattered urine scents in their territory.”

Read article at  Peeing is contagious in chimpanzees, study suggests : NPR