Q: Duckbilled platypus – result of divine distraction, or alternate universe crossover?
A: The Aboriginal Australians have several theories on the origin of this noble monotreme. Generally, these involve a duck mating with a water-rat. This is true enough, but it leaves out that these creatures were biologically compatible only because the duck in question was from a universe where birds are mammals. The crossover event is believed to have coincided with the formation of the Chicxulub crater. It is unknown what else, if anything, crossed alongside.