Q: No female Wookiees?
A: Though Chewbacca’s warrior chums all appear to be male, the fur makes it difficult to tell at a glance. In fact, a female Wookiee (Chewbacca’s wife, Malla) was featured in the 1978 Star Wars holiday TV special.
Also covered: how come Padme’s pregnancy is over so fast, why does General Grevious have a bad cough, and why didn’t Qui-Gon come back?
(But let’s not forget that Star Wars Holiday Special — who can forget a show with a song sung by Bea Arthur as the bartender in the Mos Eisley cantina? Thanks to Wikipedia, it’s legacy is securely preserved.)