The Franklin Park Zoo's family of pygmy hippos hasn't gone quite as viral as Internet sensation Moo Deng, but they're still our own slimy, adorable hometown hippos. Why it matters: Ptolemy, the zoo's youngest pygmy hippo,

The zoo defended its care for Moo Deng, arguing the baby hippo receives the best possible care and is part of a conservation programme Thailand has dismissed as outdated, animal rights group Peta's accusations that an internet-famous female baby pygmy hippo "faces a lifetime of confinement" at a local zoo cashing in on the mammal's stardom.