Zoo Keeper Bert van Santen gives the 1,2 [Getty Images]

Zoo Keeper Bert van Santen gives the 1,200 kg heavy weighting walrus Nikolai a a fishcake, made from frozen fish , 03 October 2006 as a foretaste for World Animals Day, 4 October. On this day, animal life in all its forms is celebrated, and special events are planned on locations all over the globe. 4 October was originally chosen for World Animal Day because it is the feast day of Francis of Assisi, a nature lover and patron saint of animals and the environment. (Photo credit should read VINCENT JANNINK/AFP/Getty Images) — see more

Zoo Keeper Bert van Santen gives the 1,200 kg heavy weighting walrus Nikolai a a fishcake, made from frozen fish , 03 October 2006 as a foretaste for World Animals Day, 4 October. On this day, animal life in all its forms is celebrated, and special events are planned on locations all over the globe. 4 October was originally chosen for World Animal Day because it is the feast day of Francis of Assisi, a nature lover and patron saint of animals and the environment. (Photo credit should read VINCENT JANNINK/AFP/Getty Images)

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