but when they become this barren, very little life can endure. 但这里如此荒芜 极少生物能够适应

137. Scorched by the sun and scoured by windblown sand,
     烈日炙烤加之风沙侵袭
138. desert rock is shaped into strange, otherworldly landscapes.
     沙漠岩石形成了奇异非凡的景致
139. These rocky deserts may have a beguiling beauty,
     这片岩质沙漠或许看似美好
140. but when they become this barren, very little life can endure.
     但这里如此荒芜 极少生物能够适应
141. For many animals, the only way to survive the most hostile times
     动物们想要在最严苛的环境里活下来
142. is to keep moving.
     就必须不断迁移
143. In the Kalahari, brief rains have given way to the dry season.
     喀拉哈里沙漠短暂的雨季已被旱季替代

来自《行星地球 第二季 第四集 Planet Earth S02E04 沙漠》第 140 行