So his thought was that flooding in the north of Africa actually brought those coniferous trees down tens of thousands of years ago, and what resulted was this remarkable adaptation to this unique desert environment.
所以他认为 非洲北部的洪水 携带这些针叶树种南下 千万年前， 造成了现在这种神奇的物种群 适应这一独特的沙漠气候条件。