派恩岛冰川（PIG）位西部南极冰原边缘力的冰山之一。
Pine Island glacier(PIG) is one of many at the fringes of the West Antarctic ice sheet.
帝企鹅只生活在严酷的南极冰原，它们完全颠倒了传统的父母角色。
Traditional parenting roles are reversed for emperor penguins, which live only on the harsh Antarctic ice.
再说，尽管在西南极冰原低于海平面的区域，其中也有相对安全的突起地形。
What's more, even within the areas of the WAIS that lie below sea level, there are localized spots that poke above it, and these too would be relatively safe.
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