Orangutan mothers seem to plan playdates for their offspring

Analysis of 15 years of behavioral data on 31 wild Bornean orangutan mother-offspring pairs reveals mothers deliberately travel into neighbors' territories to facilitate social play between similarly-aged young, adjusting their own foraging at significant cost—the first evidence of intentional social planning in solitary orangutans.

The study infers intention from behavioral patterns; direct proof of conscious planning remains impossible with observational data alone.