Animals are enjoying exploring a late Christmas present at Kirkley Hall Zoological Gardens.
After the zoo appealed for old Christmas trees in December, more than 300 were donated.
Now they are being used to provide enrichment for some of its 200 animal species.
Apprentice Keeper Mark Tabone said: “The trees lend themselves to a whole range of enrichment applications. Sometimes we use the trees to hide food or combine them with other stimulants, but for many animals, the trees alone are enough to stimulate natural behaviours.”