The Philadelphia Zoo is welcoming a newborn giraffe - the first to be born at the zoo in 13 years.
The unnamed female born Saturday is the offspring of 9-year-old Stella and 4-year-old Gus.
Zoo officials made the birth announcement Tuesday. They say the giraffe was delivered after a 15-month gestation, and that both mother and calf are doing well.
Officials aren't sure when Stella and her calf will make their public debut. They say the first few weeks of a calf's life are the most critical.