Facebook founder Mark Zuckerberg and his wife Priscilla Chan are expecting a baby girl.
Zuckerberg announced the pregnancy on – where else – his Facebook wall on Friday afternoon.
“We've already been so fortunate for the opportunity to touch people's lives around the world -- Cilla as a doctor and educator, and me through this community and philanthropy,” Zuckerberg wrote in a lengthy post that included a photo of the couple with their dog. 


Zuckerberg and Priscilla Chan with dog
Mark Zuckerberg and his wife Priscilla Chan are pictured in this photo posted on Facebook along with the announcement that the couple is expecting a baby, on July 31, 2015.
“Now we'll focus on making the world a better place for our child and the next generation.”