A hippo famous for his smile has died at the San Diego Zoo
Otis, a 45-year-old male river hippopotamus, was nicknamed the "smiling hippo" because of a photo taken by a zoo visitor that captured him with his teeth displayed in what looked like a giant grin.
Read more on NPR
Otis, a 45-year-old male river hippopotamus, was nicknamed the "smiling hippo" because of a photo taken by a zoo visitor that captured him with his teeth displayed in what looked like a giant grin.
Read more on NPR
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