South Korea’s oldest hippo, Hasun, dies at 46

What happened: Hasun, South Korea's oldest hippopotamus, has died at 46, Seoul Grand Park said Friday. The park said she had been eating well and remained healthy until her strength suddenly declined. Key numbers: Age at death: 46. Born: 1980. Arrived when the park opened: 1984. Typical hippo lifespan: 40 to 50 years. Why it matters: The park said Hasun lived at Seoul Zoo for more than four decades and was one of the first animals to arrive when the park opened. It said she is believed to have died of old age.

Hasun, South Korea's oldest hippopotamus, has died at 46, Seoul Grand Park said Friday. The park said she had been eating well and remained healthy until her strength suddenly declined.

The park said Hasun lived at Seoul Zoo for more than four decades and was one of the first animals to arrive when the park opened. It said she is believed to have died of old age.