and Goualougo. Young bonobos of Lomako also use moss sponges. 7. See video. leaf-spoon Put leaf into stream and suck, pour or lick water from it. Cf. leaf-midrib spoon. See video. leaf-squash See squash leaf. leaf strip See strip lea. leaf-swallow See swallow leaf. lean Incline torso to rest against tree trunk, bough, rock, or another. Kanos Reclining sit. See video. lean forward Flex trunk to expose back for grooming. Seen in bonobos. leap Jump propelled by feet. Plooijs JUM. Kanos Leap and Pikas Jump in bonobos. leap between trees Leap horizontally from tree to tree. Done by youngsters rather than adults, during play and when many food trees grow close together. See video. leap between trees with object Leap horizontally from tree to tree, while carrying object