Large tracts of sheep pasture and forest are being converted to churn out more milk , or " white gold " .
大片的羊群放牧场和森林正在被改造以增加牛奶产量,或者说“白色的金子”。
African countries are giving away vast tracts of farmland to other countries and investors almost for free , with the only benefits consisting of vague promises of jobs and infrastructure , according to a report published today .
Using imaging techniques and dna testing , scientists found algae inside the cells of young salamander embryos-and even in the reproductive tracts of some adult females .