Kurtis Pei says that for every baby orangutan captured in the wild, it is necessary to kill two or three protective adult females around it, and on average only one of every four baby orangutans survive transport.
裴家騏指出，在野外，每捕捉一隻小紅毛猩猩，意謂著要先殺死在牠周邊兩到三隻保護牠的成年雌猩猩；運送過程中，平均 4 隻小紅毛猩猩只有 1 隻存活。