So...apparently we have been overtaken by a sort of stealth invasion.
You see, why we suddenly have so many cats in the world is because, well, they're not cats. They're FLERKENS. They just unfold themselves out of space-time pockets(i.e. themselves) walk into an animal shelter, and wait to be adopted.
At this moment it is known that at least 30% of domestic cats on Earth are not domestic cats at all, but FLERKENS. And as they breed, this percentage will only increase.
Also, it is hypothesized that up to 60% of cats on Earth might be Flerkens, which is just plain scary.
Can our Earth deal with a Flerken invasion?