Two critically endangered, nearly 100-year-old Galapagos tortoises at the Philadelphia Zoo have become first-time parents. The pair welcomed four hatchlings, a first in its more than 150-year history.
Philadelphia Zoo Welcomes Four Endangered Tortoise Hatchlings NOW PLAYING 0:39 0:37 0:58 3:34 0:35 0:21 1:57 1:08 1:07 ...
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