Counting day at London Zoo

Each year the London Zoo takes a detailed census of every living thing in its care.

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A Jungle Nymph rests on a zookeeper's hand during London Zoo's annual stocktake of animals on January 3, 2013 in London, England. (Photo by Dan Kitwood/Getty Images)
A Jungle Nymph rests on a zookeeper's hand during London Zoo's annual stocktake of animals on January 3, 2013 in London, England. (Photo by Dan Kitwood/Getty Images)