The Philadelphia Zoo welcomed four new Western Santa Cruz tortoises, a subspecies of the Galápagos tortoise. What makes these ...

A pair of critically endangered, nearly 100-year-old Galapagos tortoises at the Philadelphia Zoo have become first-time ...

Philadelphia Zoo has confirmed the successful hatching of four critically endangered Western Santa Cruz Galapagos tortoises, ...

By Kristine Sabillo A pair of Galápagos tortoises in their 90s recently made headlines for successfully producing offspring ...

The arrival of their offspring bumped up the population of these Galapagos tortoises to a total of 48 in American facilities.

A Galapagos tortoise at the Philadelphia Zoo has four new hatchlings. The first-time mother and her mate are both 100 years old!

Even more remarkably, Mommy is the oldest first-time parent of her species, according to a press release from the zoo. Mommy ...

Mommy, who has lived at the zoo for nearly 93 years, is seen as one of the most "genetically valuable Galapagos tortoises" in ...

The two oldest residents of the Philadelphia Zoo are brand new parents to four hatchlings — a major milestone for this ...

The Philadelphia Zoo made the announcement Thursday, celebrating the arrival of a new generation of Western Santa Cruz ...