If you haven't yet heard of Fiona the Hippo, you might be the only one.

"Fionamania" as the New York Times recently branded it, has swept the nation. And it's easy to see why.

The ten-month-old hippo has 600 pounds of chubby cuteness wrapped in her leathery body. Scientifically, with her large head and big, round eyes, you'd be hard pressed to not find her adorable. But to top her looks, Fiona has developed a charismatic personality. Videos show her bounding across her enclosure and even photo-bombing a couple's engagement photo.

What's perhaps most endearing about Fiona is her success story. When she was first born six weeks premature last January at the Cincinnati Zoo, her keepers weren't sure