All about alcids: Extravagant divers of northern oceans
10,000 Birds
AUGUST 10, 2014
They gradually spread to the Atlantic Ocean by way of the southern coast of North America (before it was joined to South America) and gained the ability to pursue prey by diving in cool waters (see Pereira and Baker 2008 ). Today, as highly specialized pursuit divers, they are restricted to cool northern waters for a straightforward reason.
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