Riley, a 12 week-old Weimaraner puppy being trained as a working scent dog, chews on his official museum...
Riley, a 12 week-old Weimaraner puppy being trained as a working scent dog to detect pests that could damage artworks, chews on his official museum ID badge while being introduced to reporters at the Museum of Fine Arts, Boston, in Boston, Massachusetts, U.S., January 10, 2018. REUTERS/Brian Snyder