Well, cats are naturally curious creatures and love exploring their surroundings. Christmas trees are often decorated with shiny ornaments and colorful lights, which can be very tempting for cats to play with. They may climb the tree, bat at the decorations, or even chew on them. This can be dangerous for both the cat and the tree, as the decorations can break and the cat could be injured. To prevent cats from attacking the Christmas tree, it's best to provide them with plenty of other toys and activities to keep them occupied.