The tone of science fictionfilms is often a guide to the tone of the times the film was made: other worlds and species are viewed in turn as wonderful, terrifying, threatening, incomprehensible, and childishly benign.
...
In the human female, the urethra is about 1-1.5 inches (25-38 mm) long and opens in the vulva between the clitoris and the vaginal opening.
In the human male, the ...