Philadelphia Zoo Celebrates Historic Galapagos Tortoise Birth
Mommy, a Western Santa Cruz Galapagos tortoise (Chelonoidis niger porteri), has become a first-time mother at an estimated age of 100. According to the zoo, this makes her the oldest known first-time mom for her species in captivity. She arrived at the Philadelphia Zoo in 1932. The father, Abrazzo, is also around 100 years old. The first of four hatchlings emerged on February 27, with the other three following shortly after. More hatchlings may arrive in the coming days. Currently housed behind the scenes in the zoo’s Reptile and Amphibian House, the hatchlings will make their public debut on April 23, coinciding with the 93rd anniversary of Mommy’s arrival at the zoo. “This is a significant milestone in the history of Philadelphia Zoo,” said President & CEO Dr. Jo-Elle Mogerman. “Mommy arrived at the Zoo in 1932, meaning anyone that has visited the Zoo for the last 92 years has likely seen her.” The zoo’s vision is for these hatchlings to contribute to a thriving Galapagos tortoise population a century from now. The breeding effort began in December 2020 when Abrazzo arrived from Riverbanks Zoo and Garden via the Galapagos Tortoise Species Survival Plan. New substrate allowed Mommy to lay eggs in 2023, resulting in four clutches. The first three clutches were non-viable, but the fourth clutch from November 2024 was successful. Mommy laid a total of 16 eggs, which were incubated at specific temperatures to target an even gender ratio. The four hatchlings that have emerged so far are all female. “We are thrilled for this successful pairing,” said Vice President of Animal Well-Being Rachel Metz. “These hatchlings not only protect the species from extinction but serve as important ambassadors to inspire guests to save wildlife.” The Western Santa Cruz Galapagos tortoise is a critically endangered subspecies found only on southwestern Santa Cruz Island. With a life expectancy of about 175 years, it is estimated that only 3,400 individuals remain in the wild.Turtles and tortoises are fascinating reptiles, but they have distinct needs. Understanding the differences between aquatic turtles (like red-eared sliders) and terrestrial tortoises (such as the sulcata) is crucial for their well-being.
Aquatic turtles require a water habitat with a dry basking area, UVB lighting for shell health, and a diet often including commercial pellets, insects, and vegetables. Maintaining clean, warm water with a proper filtration system is essential. Tortoises are land-dwelling and need a spacious, secure enclosure with appropriate substrate for digging. Their diet is primarily herbivorous, consisting of grasses, leafy greens, and specific vegetables. They also require access to UVB light and a heat source to regulate their body temperature. Key considerations for both include: – Providing a habitat that mimics their natural environment. – Ensuring proper nutrition and calcium supplementation. – Scheduling regular veterinary check-ups with a reptile specialist. – Understanding their long lifespan, which can span decades, and committing to their care. Always research the specific requirements of your turtle or tortoise species for optimal health.
