Bimanual coordinated behaviors are critical for detecting robust individual hand preference in nonhuman primates but are particularly challenging to observe in the wild. This study focuses on spontaneous feeding behavior on African ginger (Aframomum sp. and Renealmia sp.), which involves a unimanual task (reaching and pulling out a ginger stem) and a bimanual coordinated task (extracting pith from a ginger stem) by wild western lowland gorillas.

中文翻译：

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以非洲姜（姜科）为食的野生西部低地大猩猩（大猩猩大猩猩）在单手和双手协调任务中的手偏好

双手协调行为对于检测非人类灵长类动物强大的个体手部偏好至关重要，但在野外观察尤其具有挑战性。本研究侧重于非洲姜（Aframomum sp. 和Reealmia sp.）的自发进食行为，其中涉及野生西部的单手任务（伸手拉出姜茎）和双手协调任务（从姜茎中提取髓）低地大猩猩。