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The Philadelphia Zoo welcomed four new Western Santa Cruz tortoises, a subspecies of the Galápagos tortoise. What makes these ...
A roughly 100-year-old western Santa Cruz Galápagos tortoise has become a mom for the first time after reproducing with a ...
Mommy, a Western Santa Cruz tortoise, recently welcomed four hatchlings at the Philadelphia Zoo, where she has lived since ...
The hatchlings are the offspring of Mommy and Abrazzo, two Western Santa Cruz tortoises and the zoo's two oldest residents, each estimated to be around 100 years old.
Experts also believe that warmer temperatures caused by climate change could be skewing the gender ratio among tortoise hatchlings, which could impact future reproduction in the wild. (If more ...
For the tortoise species to remain viable — an especially difficult feat, given their slow reproduction rates and long lifespans — an average of 3.9 adults must inhabit every square kilometer ...