I was looking for a video Frans de Waal linked to on FB, which he described with
A white handed gibbon baby at a French zoo is a bit too exploratory towards an orangutan baby (who wisely holds on to its mother) and some otters, until one of the gibbon parents takes precautions, leading their precious baby away by the hand. Great primate watching!/
Unfortunately I cannot seem to get this to run. (facebook warning)
Also posted at Dreamwidth, where there are comment(s); comment here or there.