Photos: The Week in Pictures - Jan. 6, 2012
London Zoo
Keeper Adrian Walls tries to count the penguins at London Zoo, in London, Wednesday, Jan. 4, 2012. The zoo is undertaking its annual animal count, as keepers individually count every animal and species at the zoo. The compulsory count is required as part of London Zoo's license. (AP Photo/Kirsty Wigglesworth)
