Prevalence of the 22 behaviors which met criteria for traditions across the five sites.

C =  customary; H =  habitual; P =  present; A =  absent; E =  ecological explanation; + =  behavior occurs but detailed information was not collected.
†For full explanation of behaviors see Table S1 in supporting information.
*play on the ground was observed with capuchin monkeys.
BCI =  Barro Colorado Island, Panama; CV =  Corcovado National Park, Costa Rica; SR =  Santa Rosa National Park, Costa Rica; RC =  Runaway Creek Nature Reserve, Belize; PL =  Punta Laguna Reserve, Mexico.