研究人员在肯尼亚北部图卡纳湖岸发现了140万年前的古人类足迹，这些足迹属于8个南方古猿鲍氏种个体，它们在同一时期在湖边一起活动1。足迹分析揭示了这些个体具有出人意料的庞大身躯，部分个体身高达到1.8米、体重约75公斤1，这一发现颠覆了学界对该物种体型较小的既有认识。
根据足迹痕迹的分析，这群个体主要由成年雄性组成，其中没有发现明显的雌性或幼体证据1。这些发现表明南方古猿鲍氏种具有更为复杂的群体社会结构1。该研究由美国和肯尼亚的国际研究小组完成，相关论文已发表于《美国国家科学院院刊》2026年第123卷第31期1。
Researchers have discovered footprints dating back 1.4 million years in northern Kenya that provide new insights into an ancient human relative's size and social behavior.1 The tracks, found along the shore of Lake Turkana, were left by eight individuals of Paranthropus boisei, a species whose physical proportions have long been underestimated by scientists.1 Analysis of the fossilized impressions indicates that some of these individuals reached heights of up to 1.8 meters and weighed approximately 75 kilograms, substantially larger than previously thought for the species.1
The footprint evidence suggests these eight individuals were likely adult males, with no clear indication of females or children present among the group that gathered at the lakeside.1 This discovery challenges earlier assumptions about Paranthropus boisei body size while simultaneously offering evidence of complex group social structure within the species.1 The findings were published in the Proceedings of the National Academy of Sciences in 2026 (volume 123, issue 31) and represent collaborative work by an international team of researchers from the United States and Kenya.1
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