Humans may still be evolving on the Tibetan plateau: Scientists reveal hidden signs of high-altitude adaptation above 3,500 metres |
High on the Tibetan Plateau, where the air feels thin in a way that is hard to describe unless you’ve stood there, human life has been quietly adjusting itself for thousands of years. Villages sit at heights where most visitors feel breathless within hours, sometimes minutes, yet whole communities carry on with farming, family life,…