Birth control pills have not been shown to get rid of or shrink ovarian cysts that have already formed. Some studies show that the cysts shrink at the same rate with or without birth control pill use.
Chewbacca's voice was created by the original films' sound designer, Ben Burtt, from recordings of walruses, lions, camels, bears, rabbits, tigers, and badgers in Burtt's personal menagerie. The individual recordings were mixed at different ratios for Chewbacca's different utterances.
Animals which chew the cud are identified as ruminants; they reregurgigte food into their mouths to be chewed again. Ruminants normally have four stomachs. Neither the rock hyrax nor the rabbit are ruminants and technically do not chew the cud. However, both animals move their jaws in such a manner as to appear to be chewing the cud.