The great auk (Pinguinus impennis) was a bird that dominated the North Atlantic during the ice age and into modern times. Great auks stood over 80 centimetres tall and lived on the open ocean ...

Bond, G. et al. "The North Atlantic's 1-2 kyr climate rhythm: Relation to Heinrich Events, Dansgaard/Oeschger Cycles and the Little Ice Age," In Mechanisms of Global Climate Change at Millennial ...