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

The birth of tortoises native to Santa Cruz Island in the Galápagos increases their U.S. population from 44 to 48. A few ...

Something kind of amazing happened recently at the Philadelphia Zoo: A pair of critically endangered, almost 100-year-old ...

Dire wolves, which went extinct more than 10,000 years old, are much larger than gray wolves, their closest living relatives ...

Four critically endangered Western Santa Cruz Galapagos Tortoises hatched earlier this month, the first time in the zoo’s ...

Mommy, a centenarian resident at Philadelphia Zoo, has officially lived up to her name – she gave birth to four hatchlings, becoming a mom at the grand old age of 100 (or thereabouts). The births are ...

A 97-year-old tortoise makes history for the critically endangered species.

The Philadelphia Zoo’s Western Santa Cruz Galapagos tortoises Mommy and Abrazzo, both estimated to be 100 years old, are the ...

Mommy, an endangered western Santa Cruz Galapagos tortoise gave birth at Philadelphia Zoo at the age of 97 to four baby ...

The male tortoise who made all this possible is called Abrazzo. Zoo officials say the births are a nice sign for the zoo's ...

PHILADELPHIA — On Thursday, the Philadelphia Zoo announced the hatching of four critically endangered Western Santa Cruz Galapagos tortoises for the first time in the zoo’s 151-year history. The ...

"Prior to the hatchlings, there ... blooded animals and spend one to two hours basking in the sun before spending another ...