The hatchlings’ parents, female Mommy and male Abrazzo, however, are likely well-known to zoo-goers. Both are estimated to be about 100 years old, with Mommy having arrived in Philadelphia in 1932 at about age 4, meaning if you’re been to the zoo over the last century or so, you’ve probably caught a glimpse of her.

Mommy, who's been at the Fairmount Park attraction since 1932, and her mate Abrazzo welcomed four hatchlings earlier this year.

A pair of critically endangered, nearly 100-year-old Galapagos tortoises at the Philadelphia Zoo have become first-time parents. The zoo said it was “overjoyed” over the arrival of the four hatchlings,