The surge in forest fires has been put down to a rise in deliberate deforestation for cattle farming.

为养牛而故意砍伐森林现象的增加导致森林火灾数量激增。

Cattle farming is now the biggest threat to the remaining Amazon rainforest, a fifth of which has been lost since 1970.

养牛场目前已经成为对仅存的亚马逊雨林的最大威胁，自1970年以来，亚马逊雨林已经消失了五分之一。

His team used computer models to map the genetic change that enabled early Europeans to evolve their tolerance to lactose after the introduction of cattle farming.

他领导的团队利用计算机模型描绘了使早期欧洲人从事奶牛养殖后忍受牛奶乳糖的基因变化。