of play. Mature and immature chimpanzees do. At Mahale, 34 year old infants often do in solo play when large group travels long distance. See also headstand. Absent in bonobos of Wamba, but seems to occur in captivity. See video. somersault, backward Somersault backwards. Context of occurrence is similar to somersault, forward and somersault, side. 5. See video. somersault, backward with dry leaves Collect dry leaves on belly and somersault backward with them; while rolling, leaves scatter little by little. Juvenile males, such as Xmas and Primus, show in solo play. See video. somersault, forward Usual somersault in forward direction. Often used as solicitation of play and during play. Circle quadrupedal usually accompanied by this type of somersault. Also done as solo play. See video. S somersault, side