Complex object manipulations in an innovative extractive foraging of coconut by an adult male long-tailed macaque Macaca fascicularis (Raffles, 1821) in southern Philippines
(18.7MB, 00:00:07)撮影日：2022/05/06
撮影場所：New Israel, Makilala, North Cotabato, Philippines
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Brian Sabanal
2025/03/24登録
種類:Macaca fascicularis
キーワード: husking manipulative skills primate cognition substrate use vertical throw
動物界 >脊索動物門 >哺乳綱 >霊長目 >オナガザル科 >マカカ属 >
Below is the abstract from the article containing this video:
In this report, we describe an innovative extractive foraging behavior exhibited by an adult long-tailed macaque (Macaca fascicularis) in the southern Philippines. The macaque, named as “Flattops,” is a member of a free-ranging, synanthropic troop in New Israel, Makilala, North Cotabato, Philippines. We opportunistically observed Flattops cracking open a coconut (Cocos nucifera) by performing 55 underhand vertical throws, striking the coconut against the ground and cement steps along a pathway, before successfully consuming its edible parts. Notably, we did not encounter other macaques in the troops performing the same method of cracking the coconuts. Although our observation represents a single instance and cannot account for the development and motivations behind the documented behavior, it suggests that this innovative foraging technique may indicate a higher level of problem-solving ability and may be unique to Flattops. It also highlights individual variation in the development of foraging strategies within the troop. Future research may explore the prevalence of innovative foraging behaviors, their efficiency compared to other techniques, and their possible transmission among troop members. Digital video images related to the article are available at http://www.momo-p.com/showdetail-e.php?movieid=momo2 50304lm01a and http://www.momo-p.com/showdetail-e.php?movieid=momo250304lm02a.
Lief Erikson D. Gamalo, Jay T. Torrefiel, Kurnia Ilham, and Brian T. Sabanal (2025) Complex object manipulations in an innovative extractive foraging of coconut by an adult male long‐tailed macaque Macaca fascicularis (Raffles, 1821) in Southern Philippines. J. Ethol. 10.1007/s10164-025-00839-7