Although such team hunts are rarely seen, 虽然这样的集体捕猎很少见 scientists believe they may be the most 科学家们相信 complex ever documented in the natural world. 这在自然界中也是最复杂的情况 They were first witness...
Southern humpbacks, 南方的座头鲸 after travelling 4,000 miles from the equator, 从赤道出发 长途跋涉四千英里 are finally arriving in Antarctica. 最终到达南极洲 Humans have long felt the lure of this mysterious world, 长久以来...
South of the tree line, the winters are shorter, 林木生长线以南 冬天更短了 so trees grow faster and taller 因此树木长得更快更高 and forests begin to appear. 树林已现雏形 As the warm, humid air from the south 当来自南方的...
These bison are even bigger than their southern cousins 这些野牛较其低纬同类体型更大 and the largest land animals in North America. 是北美洲最大的陆生动物 For generations, wolves and bison here 狼与野牛在此代代抗衡...
The break-up of the bergs fills the bays of the Arctic 遍布北冰洋的冰山碎片 with exquisite ice sculptures. 尽显大自然的鬼斧神工 It also releases great volumes of cold, fresh water into the sea. 同时 还为海洋带来了大量冰冷...
For those who can get here, in summer, 海水为那些在夏天光临到此的生物 these waters provide a feast of epic proportions. 提供一场空前绝后的盛宴 But the good times will be very short - 但美好的时光转瞬即逝 a problem...
Over the next two weeks, the male sees off many rivals 接下来的两周内 公熊击败了多位对手 but the battles take their toll on him. 但他也为战斗付出了代价 He is almost spent, 他已筋疲力竭 but he has ensured that 但他已确...
The polar spring brings a brief opportunity for life. 极地的春天带来了一丝短暂的生机 By summer, the sun no longer sets 到了夏季 太阳不再落下 and works its magic for 24 hours a day. 全天24小时施展着魔力 Now it's a rac...
The poles are permanently capped with ice. 冰天雪地是两极永恒的主题 Nowhere is colder,windier or more hostile to life. 对于生命那里的酷寒狂风是最严苛的挑战. I'm standing at the North Pole-the very top of the Earth. 我的脚...
Over one third of our planet is frozen,and yet, the icy worlds of the Arctic and Antarcti 地球上有超过三分之一的地方是冰天雪地,然而北极和南极这两个被冰雪覆盖的世界 are as alien to most of us as the surface of anoth...
