This Monday, January 2, 2017, photo provided by the Elmwood Park Zoo shows a red panda named Shredder, left, and his brother Slash, right, at the zoo in Norristown, Pa. The suburban Philadelphia zoo says 2-year-old Shredder died Wednesday, Jan. 4, 2017, and a necropsy found signs of heart disease. The species is listed as endangered, with fewer than 10,000 red pandas living in the wild. (Photo by Kate Olsen/Elmwood Park Zoo via AP Photo)
