Scientists suspect that contagious urination, a behavior they observed among a troop of apes in Japan, may play an important role in primate social life. Scientists suspect that contagious urination, a behavior they observed among a troop of apes in Japan, may play an important role in primate social life. Monkeys and Apes, Urine, Animal Behavior, Evolution (Biology), Research, Current Biology (Journal), your-feed-science NYT > Science