In a groundbreaking event, a pair of 100-year-old Western Santa Cruz Galapagos tortoises at Philadelphia Zoo have become new parents for the first time, hatching four adorable offspring in a milestone for the institution.
Historic Hatchings: Philadelphia Zoo Celebrates First Giant Tortoise Births

Historic Hatchings: Philadelphia Zoo Celebrates First Giant Tortoise Births
Giant tortoises make history as Philadelphia Zoo welcomes first hatchlings from critically endangered species.
In an exciting announcement, Philadelphia Zoo has revealed that Abrazzo and Mommy, a pair of critically endangered Western Santa Cruz Galapagos tortoises, have made history as first-time parents. Coming in at approximately 100 years old, this notable duo recently celebrated the hatching of four healthy tortoise hatchlings, a remarkable achievement in the zoo's 150-year legacy.
Mommy, who has been a resident since 1932, holds the record as the oldest known first-time tortoise mother of her species. The births mark a significant moment for conservation efforts, as fewer than 50 of these majestic tortoises are housed in US zoos. The first egg hatched on February 27, igniting a wave of excitement amongst staff and visitors alike, as the animal care team keeps a close eye on additional eggs that may still hatch in the coming weeks.
Each hatchling weighs between 70 and 80 grams and is currently being nurtured behind the scenes in the Reptile and Amphibian House. The zoo has plans for a public reveal of these adorable newcomers on April 23—the very day marking Mommy’s 93rd anniversary at the zoo.
"This is an extraordinary milestone in Philadelphia Zoo's history, and we are thrilled to share this good news with our community and the world," said Jo-Elle Mogerman, president and CEO. "Visitors over the years have had the privilege of seeing Mommy grow, and now they will witness a new generation.”
Abrazzo, the proud father, joined the team at the Philadelphia Zoo in 2020, showcasing the zoo's commitment to species preservation and genetic diversity through the Association of Zoos and Aquariums' breeding program. As the zoo envisions a thriving population of Galapagos tortoises 100 years into the future, this joyful birthing serves as an hopeful indicator of successful conservation efforts.