<p>Gentoo penguins have plenty to be apprehensive about when entering Antarctica's frigid waters. To reach the summer's bounty of fish, squid and krill, they often must negotiate a phalanx of hungry sea leopards.</p>
Gentoo Penguin
Gentoo penguins have plenty to be apprehensive about when entering Antarctica's frigid waters. To reach the summer's bounty of fish, squid and krill, they often must negotiate a phalanx of hungry sea leopards.
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Seabirds
As at home on the water as they are on land, these birds can list swimming, diving, and fishing on their impressive avian resumes.
