A hippo, an orangutan, and a scientist walk into a milk bar... or so our story goes. In January 2017, a baby hippo was born at the Cincinnati Zoo six weeks premature and some 30 pounds underweight. Her name was Fiona, and getting her to put on pounds was a life or death matter. Unfortunately, nursing wasn't an option and the only hippo formula recipe on file was old and out of date. To devise a new one, team Fiona turned to the scientists at the world's largest exotic milk repository at the Smithsonian's National Zoo. But could they do it in timeā¦and would Fiona drink it?