Holiday leftovers aren't just for humans. Elephant calf Thabo-Umasai at Germany's Zoo Dresden joined camels, deer, and sheep in a traditional New-Year feast of Christmas trees recently. "Elephants around the country enjoyed a delicious lunch consisting of about five Christmas trees each," said Ragnar Kuehne of Zoo Berlin. Unlike the pie, pudding, and honeyed ham that may be haunting your fridge, though, pine trees' unique oils may actually help some animals' digestion, Kuehne said. Some doctors are recommending supplements with a pine bark extract called Pycnogenol. Supporters claim the antioxidant compound can reduce asthma attacks, thin blood, improve circulation, lower blood pressure, and relieve symptoms of diabetes.