beats from a fellow. Goodalls Startle flinch: When a chimpanzee is startled by a sudden movement nearby he/she will immediately duck his head and fling one or both arms across his/her face, or if very startled, throw both hands in the air Also, Goodalls Startle reaction; P 132 patrol Plooijs Startle. Bonobos of Wamba duck head in similar context. See video. See also video splash water. party Sugiyama Party. Nishida Subgroup. Temporary subgroup of unit group or community, in fission-fusion. Size of parties changes seasonally, dependent on distribution and quantity of major fruit. See unit group. pass Walk past another, without body contact. See walk quadrupedal. Goodalls Pass. Kanos Pass without body contact for bonobos. See video. pass under Go under low horizontal obstacle such as fallen log.