Critically endangered Galapagos tortoises become first time parents at nearly 100 years old
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A pair of critically endangered, nearly 100-year-old Galapagos tortoises at the Philadelphia Zoo have just become first-time parents.
In an announcement last week, the zoo said it is 'overjoyed' at the arrival of the four hatchlings, a first in its more than 150-year history. The babies are the offspring of female Mommy and male Abrazzo, the zoo's two oldest residents.
The quartet is being kept behind the scenes inside the Reptile and Amphibian House for now, 'eating and growing appropriately,' the zoo said. They weigh between 70 and 80 grams, about the weight of a chicken egg.
The first egg hatched on 27 February, and more that still could hatch are being monitored by the zoo's animal care team.
'This is a significant milestone in the history of Philadelphia Zoo, and we couldn't be more excited to share this news with our city, region and the world,' President and CEO Jo-Elle Mogerman said in a statement.
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'Mommy arrived at the Zoo in 1932, meaning anyone that has visited the Zoo for the last 92 years has likely seen her," she added.
"Philadelphia Zoo's vision is that those hatchlings will be a part of a thriving population of
Galapagos
tortoises on our healthy planet 100 years from now.'
Western Santa Cruz Galapagos tortoises are critically endangered
Mommy is considered one of the most genetically valuable Galapagos tortoises in the Association of Zoos and Aquariums' species survival plan (AZA SPP). This programme aims to ensure the survival of the Western Santa Cruz Galapagos tortoise and maintain a genetically diverse population.
The species is listed as critically endangered by the International Union for Conservation of Nature (IUCN) with
threats
including human-wildlife conflict, the introduction of invasive species, and habitat loss.
"At one point, each of the Galapagos Islands had its own unique Galapagos tortoise, but sadly, several of them are now extinct," said the zoo's vice president of animal well-being and conservation, Rachel Metz.
"These hatchlings not only protect the species from extinction but serve as important ambassadors to inspire guests to save wildlife and wild places."
Mommy is the oldest first-time mum of her species at any zoo in the US, according to
Galapagos Tortoise
SSP coordinator and studbook keeper, Ashley Ortega at Gladys Porter Zoo in Texas.
"Prior to the hatchlings, there were only 44 individual Western Santa Cruz Giant tortoises in all US zoos combined, so these newest additions represent a new genetic lineage and some much-needed help to the species' population," Ortega explains.
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The last clutch of such tortoises to hatch at an AZA-accredited zoo was in 2019 at Riverbanks Zoo and Garden in Columbia, South Carolina. The San Diego Zoo, Zoo Miami and Honolulu Zoo also have breeding pairs.
The zoo plans a public debut of the hatchlings on April 23, as well as a naming contest.
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