William Tyler Pearson -- male heir to the mental_floss fortune -- entered the world on Tuesday. Mother and baby are doing great. (Dad too!)

While the paparazzi are camped outside the hospital eagerly awaiting the first baby photo, let's give a warm round of applause to parents Will & Georgia and big sister Penny Rose. Look for William Tyler modeling mental_floss baby clothes in an upcoming catalog.

[Image courtesy of Flickr user Donncha.]