Asiatic lion (Panthera leo persica) sniffing recycled Christmas tree, Feb 16th, 2019

Apparently big cats like tigers and lions love to play with it. Amersfoort does this as well with their tigers, and it's a great form of enrichment there.

@Jarne Other animals also get recycled Christmas trees, like the Indian rhinoceroses, Asian elephants, American bisons and Roosevelt elk and Wisents.

I suspect that herbivores would interact differently with coniferous trees than herbivores, although I doubt they would munch much of them.