Silas, a male pygmy hippo calf, swims Friday in his habitat at Omaha's Henry Doorly Zoo and Aquarium. Silas, a male pygmy hippo calf, swims behind his mother, Chomel, at the Omaha zoo's Lied Jungle.

Given their huge size, there is no question as to why hippopotamuses are one of the most feared mammals. Apart from their bulky appearance, they also have an odd-looking mouth that features huge, ...

In 1953, a 10-year-old star named Gayla Peevey gave the world something to yearn for when she recorded the classic song, "I want a Hippopotamus for Christmas." Nearly 70 years later, a zoo in Virginia ...

He may be one-eighth the size of a regular hippopotamus, but he's easily twice as cute. A pygmy hippo calf will be introduced to Omaha this morning. The male hippo, named Silas by his keepers, was ...