Remarkably preserved footprints show two ancient human relatives crossed paths 1.5 million years ago. Plus, plastics-treaty negotiations end in stalemate and drug cartels are recruiting chemistry students in Mexico.

中文翻译：

---

每日简报：我猜是直立人吧？脚印显示古代古人类曾相遇


保存完好的脚印显示，两个古老的人类亲戚在 150 万年前相遇。此外，塑料条约谈判以僵局告终，贩毒集团正在墨西哥招募化学学生。