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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 witnessed by Captain Scott and his men
一百年前斯科特船长和他的船员们
when they came to explore Antarctica 100 years ago.
在探索南极洲时 首次目睹了此景
Journeying further south,
继续向南航行
the fragmenting ice is replaced by a permanent sheet
碎冰被永恒不变的冰原取代
that doesn't melt even at the height of summer.
即使在夏日酷暑中也不会融化
It's a barrier that many creatures find impassable.
它是许多生物不可逾越的障碍
It repels even powerful minke whales.
即使是强大的小须鲸也不行
They have toturn backif they canno longerreach the air
如果它们得不到所需的空气
they need to breathe.
就不得不回头
Under the ice, life has to be extremely specialised to survive.
在冰下 生物必须适应力极强才能生存
Few ofus will ever experience this strangely-still world,
鲜有人有机会探索这个极度寂静的世界
and, as yet, no-one knows much about it.
到目前为止 人类对此仍所知寥廖
