Video of the day: Tigers go crazy for recycled Christmas trees
London Zoo has come up with a novel way of recycling its Christmas trees: making them into toys for tigers.
The trees have proved the perfect "enrichment" toys for the zoo's pair of Sumatran tigers, Lumpur and Reika. Different scents are used as part of the animals' regular play time, to stimulate their natural curiosity - so the fragrant firs were a real treat for the pair.
Sign up to our weekly newsletter | Follow us on Twitter | Become a fan on Facebook