A female pygmy hippo named Iris gave birth to a healthy female calf on December 9 at the Metro Richmond Zoo, officials said.

Gayla Peevey used the popularity of her hit "I Want a Hippopotamus for Christmas" to help the OKC Zoo get its first hippo.

The zoo said Iris was all smiles on Christmas morning. "Most people don't get a hippopotamus for Christmas at all, so we feel lucky to have received two over the years," the zoo said. Iris and ...