A feline litter usually consists of two to five kittens born after a gestation lasting between 64 and 67 days, with an average length of 66 days. Kittens emerge in a sac called the amnion, which is bitten off and eaten by the mother cat.
âHarley Quinn. Dr. Harleen Frances Quinzel, also known as Harley Quinn (a pun on the word harlequin), first appeared in the Batman: The Animated Series episode Joker's Favor, where she served as a humorous female sidekick to the Joker.
Harley Quinn is the Joker's only romantic interest in the comics. Also, the Joker in the comic strip The Killing Joke, he has a pregnant wife named Jeannie. There are too many strips from different creators that have the Joker having a wife and family before he goes super-sane. There is no definite backstory.