San Diego Humane Society’s Project Wildlife team has cared for Hannah since she was rescued in 2002. (Photo courtesy of San Diego Humane Society) Hannah Shirley, the world’s oldest living pygmy ...

A very special hippo recently celebrated her birthday at the San Diego Humane Society's Ramona Wildlife Center, marking a rare and heartwarming milestone. Hannah Shirley, believed to be the world's ...

A pygmy hippo in Southern California broke two age-related world records this year alone. Hannah Shirley, who lives at the ...

RAMONA, Calif. (CNS) - Hannah Shirley, the world's oldest living pygmy hippopotamus in managed care, was celebrated Thursday with a "Hungry Hungry Hippos"-themed party before her 52nd birthday on ...

The world's oldest pygmy hippopotamus celebrated its 52nd birthday with a Hungry Hungry Hippos-themed party. Born on November 22, 1973, Hannah Shirley has lived at the San Diego Humane Society since ...