And now the zoo is urging families to drop off their used Christmas trees to provide the animals with new toys for the new year.
Kim Simmons, a director at the zoo said: 'We've already had quite a few trees coming in, which are giving the lions hours of fun.'
It is thought that the lions love playing with the trees as they contain catnip, sometimes known as catmint, a plant of the mint family, which can cause many cats euphoria.