Biology is fun - you know what is thriving? Ants. Freaking ants are everywhere. They aren't particularly smart but man, somehow, they thrive and blanket the earth with their antness. There's like a billion of them born every month and they will probably never go extinct. You could almost say the ants have conquered the earth.
You know what is not thriving? Elephants. They are slow, they are smart and they are all stuck together in one little spot. You could probably say that elephants have not conquered the world and won't anytime soon.
Yes, this is a social media allegory involving ants and elephants.
If you want to bootstrap a new ecosystem, you breed ants. Not elephants. You get millions of ants in a few months but only one elephant after decades. I will be eating ant pancakes while you try desperately not to butcher a baby elephant.
Ants are kind of gross and creepy, elephants are majestic and awesome. But which one wins the evolutionary race?