It's a girl!The Louisville Zoo's baby boom continues with the arrival of a new baby zebra.The zoo said Azizi, a 6-year-old Hartmann's mountain zebra, gave birth to a female foal just before midnight on May 12.They say both mother and baby are doing well, and are back on display for zoogoers.The filly weighed 71 pounds at birth and is healthy. They do not yet have a name picked out."We are ecstatic to have so much to celebrate this spring. These new offspring will be wonderful ambassadors to tell the stories of their species," said Louisville Zoo Director Dan Maloney. "We look forward to watching this new filly grow with our community and sharing news about our pending giraffe birth."In early May, the zoo celebrated the first harbor seal birth in its history. Louisville Zoo staff are currently monitoring Masai giraffe Kianga, who is well into her pregnancy with a calf expected soon.