But researchers have little doubt that the figure is on a downward slide, as the polar ice sheet on which the mammal depends for every stage of its life thins and retreats from beneath its flippered feet.
Source: wiktionary
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But researchers have little doubt that the figure is on a downward slide, as the polar ice sheet on which the mammal depends for every stage of its life thins and retreats from beneath its flippered feet.
Source: wiktionary