Dudley Zoo's seven female chimps are also enjoying Shrove Tuesday as staff made them pancakes.
Keeper Stacey Ball said: "We usually give the chimps a well-balanced diet of fruit and vegetables, but they love the occasional sweet treat, just like humans.
We had quite a challenge trying to flip the pancakes over the high fence to the girls who were eagerly waiting in the paddock.
They reached up to catch them as they went flying over and really loved their treats."
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