51动漫
Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 51动漫鈥檚 exclusive in-depth articles, interviews and long reads.
Humans
Hominins may have left Africa 700,000 years earlier than we thought
Our hominin ancestors originated in Africa and the consensus is that they didn't leave there until about 1.8 million years ago, but stone tools found in Jordan challenge the idea
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