As the holiday season brings Christmas trees, decorations, and holiday foods, pets may take the opportunity to create mischief.Festive PlantsHoliday plants such as Christmas trees, holly and mistletoe can make their way indoors throughout December. The U.S. Department of Agriculture estimates that between 25-30 million Christmas trees are sold annually in the U.S. this time of year.While it is not common for cats and dogs to eat tree needles during the holidays, according to Bailey, those that do can experience health issues; fortunately, those issues are self-limiting, meaning symptoms can be resolved without veterinary treatment.“If cats and dogs eat Christmas ...