Support WBURSubtracting Calories May Not Add Years To LifePlay03:56Download AudioNell GreenfieldboyceAugust 30, 2012 ShareA rhesus monkey eats watermelon, provided by zookeepers, at the Kamla Nehru Zoological Gardens in India in May 2012. (AFP/Getty Images)
A rhesus monkey eats watermelon, provided by zookeepers, at the Kamla Nehru Zoological Gardens in India in May 2012. (AFP/Getty Images)