After nearly 15 months, a Woodland Park Zoo giraffe gave birth to a baby Tuesday night.
Olivia, a 6-year-old Rothschild's giraffe, is a first-time mother. The male calf has not yet been named.
The calf, which is already 5½ feet tall, stood an hour and a half after birth and began nursing soon after. Once fully grown, female giraffes can grow as tall as 16 feet and males as tall as 18 feet.
Mother and calf will stay off-view in the giraffe barn for a week or two to give them time to bond. After that, the newborn will likely follow its mom to the outdoor corral where visitors can see them.
It will be a few months before the calf can go to the African Savanna exhibit.
The last viable birth of a giraffe at the zoo was in 1997. Rothschild's giraffes are endangered and face threats including poaching and habitat loss in the wild.
Watch a video of the baby's birth and his first attempts to stand:
(Video from the Woodland Park Zoo's blog)