<p>In this Jan. 22, 2015 photo, a Gentoo penguin feeds its baby at Station Bernardo O'Higgins in Antarctica.</p>
February 21, 2015
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February 21, 2015 8 p.m.
Antarctica's mysteries could be key to future
DECEPTION ISLAND, Antarctica - Earth's past, present and future come together here on the northern peninsula of Antarctica, the wildest, most desolate and mysterious of its continents.