The adults close ranks around their young, presenting a wall of blubber and hide. 但成象围成圈保护小象, 构成了一堵坚固的脂肪皮墙
and 24 hours of daylight allow animals to feed around the clock. 一天24小时都是白昼 动物可以24小时觅食
Forming a defensive ring around their calves, the adults present a barricade that few hunters could breach. 成牛围成圈以保护它们的小牛, 一般的猎食动物很难突破这层封锁
They seem oblivious to the noisy crowd around them. 它们似乎对周围的喧嚣充耳不闻
by detecting distortions in the electric field they create around their bodies. 它们在身体周围形成电场 并感知其变化
but they drop their guard when the Gelados are around. 但只要狮尾狒一来到身边 它们便放松警惕
they peel off to take up separate positions around their target. 便立刻分散 占领目标四周的各个位置
They seem to form a cordon around the impala. 它们似乎打算对黑斑羚形成一个包围圈
The earth, as it makes its annual journey around the sun, 地球每年绕着太阳公转