Squash ectoparasite on arm. Customary only at Ta. See squash ectoparasite on palm. Absent at Mahale. squash ectoparasite on palm Nakamura and Nishida Squash ectoparasite on palm. Customary only at Bossou. Cf. squash ectoparasite on arm. Absent at Mahale. squash leaf Whiten et al. Leaf-squash: Squash ectoparasite on leaf. Mahale chimpanzees take louse from body, place it on leaf, fold leaf, and squash it with thumb and fingers. Habitual at Gombe. See also groom leaf. 5. See video. squat Hunt et al.: The body weight is borne solely by the feet/foot, both hip and knee are strongly flexed. Also in bonobos. Cf. sit. S 178 stamp other squat bob See bob. squeal in copulation High-pitched, scream-like sound accompanied by grin, emitted by estrous female at final stage of