Scientists in China have found evidence that our ancestors were almost entirely wiped out ~1 million years ago.

Why? #ClimateChange

While not every expert agrees, the research is intriguing & @Carl_Zimmer has the details: https://www.nytimes.com/2023/08/31/science/human-survival-bottleneck.html?smid=nytcore-ios-share&referringSource=articleShare #science