From baby elephants and jaguars and the arrival of a rare hippo at the Houston Zoo to the return of a rescued sea turtle to the Gulf of Mexico, the stories are diverse but with one common ...

Thailand's superstar baby pygmy hippo Moo Deng has some new competition. On Thursday, the Houston Zoo announced it recently welcomed a 4-and-a-half-year-old, 477-pound male pygmy hippopotamus.

If you drive down a neighborhood you'll see hippo statues of varying sizes and colors at every home. They're like gremlins, they keep popping up when you least expect. Henrietta, a 14,000-pound ...