The average human lifespan is just under 80 years, but some animals live much longer. Greenland sharks, bowhead whales, koi, ...

"If that's the case, she's an anomaly." Onassis the giant South American river turtle is believed to be the oldest animal at the Milwaukee County Zoo. She is an Arrau turtle (Podocnemis expansa ...

One nearly century-old tortoise has been a fixture of the Philadelphia Zoo since 1932 — and now she’s living up to her name. Mommy, the estimated 97-year-old Western Santa Cruz Galapagos ...