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Betsy Karkowski

(Birthday girl Unna, center, leads fellow hippo Cindy to their pool at the Philadelphia Zoo.  Photo by John McDevitt)

Another Philadelphia Zoo Hippo Turns 25

Birthday girl Unna, who just turned 25, led the way to her pool party as she and her roommate, Cindy, went for a swim.

08/07/2014

(Cindy, right, and Unna, at the Philadelphia Zoo.  Credit: Steve Tawa)

With Warmer Weather, Philadelphia Zoo’s Hippos Reintroduced to Outdoor Habitat

Hippopotamus expert and lead keeper Betsy Karkowski watched as the pair, Cindy and Unna, enjoyed their first dip in the outdoor pool.

04/18/2013

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