Millions wait for giraffe to give birth
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Giraffe cam: Millions waiting to watch calf's birth at New York zoo

A New York zoo is live streaming the birth of its newest addition, a baby giraffe - the only problem being that it has not turned up on schedule.

Almost 20m people have so far tuned in to watch live video of expectant mum April milling around in her pen, hoping to observe her giving birth.

But so far viewers have been disappointed.