Scientists were amazed to discover a 507-year-old clam that was already 100 in Shakespeare’s day, but why did it live so long ...

The California zoo invited fans of the late Galápagos tortoise to enjoy one of her favorite snacks, a "generous, fruit-filled salad," in her honor ...

In the animal kingdom, pregnancy rarely follows the rules, with many species being pregnant for a year or more.

The Milwaukee County Zoo's oldest animal is a curious Brazilian who is still learning new skills at her advanced age. In turn, the challenges of caring for her has led zoo staff to devise and adapt ...

Biologist Jon Allen is the proud owner of the world's oldest ribbon worm on record. The adopted invertebrate is fondly called ...

Here’s what you’ll learn when you read this story: The longest-lived mammals on Earth, bowhead whales, contain longevity secrets that scientists hope could be applied to our own biology. A new study ...

Peptides may be able to survive in the enamel of teeth that are tens of millions of years old. Two independent studies have reported on proteins found in ancient teeth, have provided the oldest ...

(FOX 5/KUSI) — Gramma, a Galapagos tortoise that was the oldest living animal at the San Diego Zoo, has died. The zoo said Gramma had ongoing bone conditions and that caretakers had to make the ...

The zoo said Gramma had ongoing bone conditions and that caretakers had to make the difficult decision to say goodbye to the legendary resident of the zoo. Gramma was known among her San Diego Zoo ...