Shimada Masaki
Department of Animal Sciences, Teikyo University of Science, 2525 Yatsusawa, Uenohara, Yamanashi, 409-0193, Japan,
Primates. 2013 Oct;54(4):315-7. doi: 10.1007/s10329-013-0369-z. Epub 2013 Jun 19.
Reliable evidence was obtained of the simultaneous performance of social grooming and social play behaviors by individuals among wild chimpanzees of the M group in Mahale Mountains National Park. I observed three cases of this performance: in an old female, a young female, and an adult male. While the agent was grooming the back of an adult bimanually, an infant or a juvenile approached the agent. The agent then started playing with the infant/juvenile using only the right hand, while simultaneously grooming the back of the adult with the left hand. In one case, an old female continued the simultaneous performance for about 1 min. Such performances probably occur at low frequency because they are not often required. The similarity in the neurobiological bases and the functions of social grooming and social play behaviors, both of which include repetitive contact with the body of another individual, may facilitate their simultaneous performance.
在马哈尔山国家公园的M组野生黑猩猩中，有可靠证据表明个体同时进行社交梳理和社交玩耍行为。我观察到了三例这种行为表现：一例发生在一只老年雌性黑猩猩身上，一例在一只年轻雌性黑猩猩身上，还有一例在一只成年雄性黑猩猩身上。当施动者用双手为一只成年黑猩猩梳理背部时，一只婴儿或幼年黑猩猩靠近了施动者。然后，施动者只用右手开始与婴儿/幼年黑猩猩玩耍，同时用左手继续为成年黑猩猩梳理背部。在一个案例中，一只老年雌性黑猩猩持续这种同时进行的行为约1分钟。这种行为表现可能发生频率较低，因为它们并不经常出现。社交梳理和社交玩耍行为在神经生物学基础和功能上具有相似性，两者都包括与另一个体身体的重复性接触，这可能有助于它们同时进行。
