On Dec. 24, 1953, a 700-pound "baby" lumbered from her moving crate into the awaiting water at Oklahoma City's Lincoln Park Zoo. "I Want a Hippopotamus for Christmas" had reached No. 24 on the ...

Bison are pictured at the Oklahoma City Zoo in Oklahoma City ... The building once housed hippopotamus and elephants but now is a climate-controlled home for reptiles and small rodents.