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Daniel Zupanc / AFP - Getty Images
Fu Hu, a panda born at Vienna's Schoenbrunn Zoo plays in the snow in his enclosure on Jan. 17.
Robin Loznak for msnbc.com
An American robin leaps from a snowy fence post along a pasture on a farm near Oakland, Ore., on Jan. 16.
Dean Lewins / EPA
Adelie penguins making their way towards the fast ice near Mawson's Hut in Commonwealth Bay, Antarctica, on Jan. 15.
Robin Loznak for msnbc.com
A sheep on a hillside in rural Douglas County near Elkton, Ore., on Jan. 15.
Johannes Eisele / AFP - Getty Images
Gulls sit on a partially frozen lake in in Berlin on Jan.15.
Jim Schulz / AP
A pair of Mexican gray wolves enjoy the snow around their outdoor habitat at the Brookfield Zoo in Chicago on Jan. 12.
Darren Staples / Reuters
Horses rear on a frosted field in England on Jan. 16.
Jim Schulz / AP
Sarani, a 1 year old female snow leopard, enjoys the snow around her outdoor habitat at the Brookfield Zoo, in Chicago on Jan. 12.
Ilya Naymushin / Reuters
Khan, a 2 year old male rare Bengali white tiger, licks snow inside an open-air cage at the Royev Ruchey zoo in Russia on Jan. 11.