But there are signs on the sand that can give it away. 但沙子的移动 却泄露了它的行踪
Avoiding the extreme heat imposes a rhythm on desert life. 为躲避难耐的高温 沙漠动物有了自己的节奏
Bands of wild horses, mustang, are converging on 一群群美洲野马聚集在
he can now set off on the long journey home. 他开始漫长的归家旅程
They're setting off on the longest overland migration 斑马的迁移距离称霸
Hanging his prey out of the reach of scavengers on the ground 把猎物挂起来可以防止地面的食腐动物来争抢
some of the most dramatic landscapes on the planet. 这是地球上最激动人心的自然奇观