一个有3 400万年历史的埃塞俄比亚化石证实,两个早期人类共存,饮食和爬树习惯各异。 A 3.4-million-year-old Ethiopian fossil confirms two early human species coexisted, with differing diets and tree-climbing habits.

来自埃塞俄比亚的3 400万年前的化石脚被证实属于Australobithecus deyimemeda, 表明这位古代人类亲戚与Lucy的物种A. aferensis共存, 并可能因其可对抗的大脚趾而在树上花费更多时间。 A 3.4-million-year-old fossil foot from Ethiopia, confirmed to belong to Australopithecus deyiremeda, reveals that this ancient human relative coexisted with Lucy’s species, A. afarensis, and likely spent more time in trees due to its opposable big toe. 新化石,包括有12颗牙齿的下巴,显示A. deyieremeda 吃了叶子、水果和坚果,而A. afarensis则食用更多的草,表明他们占据了不同的生态位置。 New fossils, including a jaw with 12 teeth, show A. deyiremeda ate leaves, fruit, and nuts, while A. afarensis consumed more grasses, suggesting they occupied different ecological niches. 这些根据CT扫描和同位素分析得出的研究结果表明,300万年前,多种荷米宁物种共同生活在一起,对简单、直线人类进化道路的概念提出了挑战,并突出了早期人类适应中更大的多样性。 The findings, based on CT scans and isotope analysis, indicate multiple hominin species lived together around 3 million years ago, challenging the idea of a simple, linear human evolutionary path and highlighting greater diversity in early human adaptations.