This month, the Philadelphia Zoo announced the arrival of four hatchlings born to the male tortoise Abrazzo and the aptly ...

The births were a "first" in the zoo's 150-year history, and Mommy, who arrived in 1932, was the oldest known first-time ...

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

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

Mommy has been living at the Philadelphia Zoo for 90 years, and waited until old age to experience motherhood.

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck ...