Ohio zoo euthanizes hippo believed to be about 59

CLEVELAND (AP) — A Nile hippopotamus believed to be the oldest in North America has died at an Ohio zoo.

Zoo-Hippo-Dies Sidd

This undated photo provided by the Cleveland Metroparks Zoo shows Blackie a Nile hippopotamus. Blackie, who came to the zoo from Africa in 1955, was euthanized Monday, Jan. 13, 2014, due to "advanced age-related ailments." The zoo says he was about 59 years-old and believed to be the oldest in North America. (AP Photo/Cleveland Metroparks Zoo)

The Cleveland Metroparks Zoo says the male hippo was euthanized Monday due to "advanced age-related ailments." The zoo says the hippo was named Blackie and was about 59 years old.

A zoo announcement says Blackie sired three male offspring after arriving at the zoo from Africa in 1955. Blackie was born in a game sanctuary in Tanzania.

The zoo says hippos typically live 30 to 40 years in the wild and can live longer in captivity.