Oldest pygmy hippo in North America turns 50

Hannah Shirley, North America's oldest pygmy hippo celebrated the half-century mark with presents and a cake made of a watermelon base, papaya frosting and spaghetti squash.

Pygmy hippos, which are endangered, usually live between 30-50 years. There only a few thousand left in the wild and the main threat to their existence is hunting and the loss of habitat due to the timber industry.