40,000 年前，欧亚大陆的大草原是我们最近的亲戚尼安德特人的家园。最近的基因和考古发现证明，他们并不是我们长久以来认为的那种愚蠢的洞穴居民。事实上，他们有文化，精通技术，并且比我们想象的更像我们！那么他们为什么消失了呢？

40, 000 years ago the steppes of Eurasia were home to our closest human relative, the Neanderthals. Recent genetic and archaeological discoveries have proven that they were not the dim-witted cave dwellers we long thought they were. In fact, they were cultured, technologically savvy and more like us than we ever imagined! So why did they disappear? We accompany scientists on an exciting search for an answer to this question and come to a startling conclusion …