UPDATE: If you missed the birth live, Animal Planet will be doing a "special program," which sounds like a re-run of the event, tonight at 8 p.m. and again at 10 p.m.
UDPATE, 6 p.m.: We have a baby giraffe! The labor took an hour, the zoo says. You can watch mom and baby in the live stream below.
UPDATE, 5:25 p.m. April 10: Katie is in labor, the Dallas Zoo says. Watch the live stream below.
Original story: Katie, a giraffe at the Dallas Zoo, is expecting a calf. Animal Planet wants you to feel as close as possible to the impending birth, so they're planning to livestream it.
They have a webpage and a Ustream player (embedded below) for what they're simply calling "Giraffe Birth Live" (straight and to the point, Animal Planet. Well done). It's a live camera feed of Katie's stall at the zoo, constantly streaming so that when the birth happens, it will happen on the Internet.
At the time of this writing, Katie actually isn't in her stall -- she's out roaming. Animal Planet says that 5 p.m. central is the time every day when she usually comes back in for dinner and to get settled in for the evening.
Animal Planet also has an FAQ available about this feature as well as giraffe births in general -- for example, if you want to know the expected size of the newborn giraffe, they'll tell you that, "A calf is born weighing 100 to 150 pounds and measuring in at 6 feet tall."