Gentoo penguins take
a break on a drifting
iceberg between
rounds of foraging.
They use claws on their
feet to climb up the
ice. Their numbers on
the Antarctic Peninsula
have increased more
than sixfold during the
past four decades. Gen-
toos rely less heavily on
krill than chinstrap and
Adélie penguins do.
antfer
(Antfer)
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