The Philadelphia Zoo officially has a few new residents, in the form of four Western Santa Cruz Galapagos tortoise hatchlings that were bred and hatched at the zoo — a first in its 150-year history. “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,” zoo president and CEO Jo-Elle Mogerman said. “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.”