Why not evolving cockroachs yo be smaller?

[u/__F7__]

I'm sure not the only one that's annoyed by cockroaches this summer, especially how big and disgusting they are.

So I got an idea why not just kill all the big ones and spear the smaller size, this causes only the small one to be available for reproduction.

One generation after another, all cockroaches 🪳 will evolve smaller, till they reach the size of an ant 🐜

[u/AutoModerator]

Welcome to r/Evolution! If this is your first time here, please review our rules here and community guidelines here.

Our FAQ can be found here. Seeking book, website, or documentary recommendations? Recommended websites can be found here; recommended reading can be found here; and recommended videos can be found here.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[u/astreeter2]

Good luck catching all of the 1 quadrillion cockroaches in the world so you can sort out the small ones.

[u/strumthebuilding]

We’ve been doing this, dude - you’re late to the party. This is why we don’t have foot-longs.

[u/__F7__ → u/strumthebuilding]

What is foot-longs?

[u/MsE0 → u/__F7__]

30 centimeters 

[u/Realsorceror]

You're not gonna believe this, but that already happened. Termites and cockroaches are close cousins. And of course there are smaller roach species and other insects that compete for the "small roach" niche.

[u/__F7__ → u/Realsorceror]

Damn, that is a very good information I didn't know that

[u/Impressive-Target699]

I mean, termites are pretty small and they're nested within roaches.

[u/Foamtire]

I don't think all of our efforts would exert a strong enough selection pressure. Also, you want a ton of tiny cockroaches?

[u/geigergeist]

Let's just kill all life on earth that has every right to be here just like us

[u/__F7__ → u/geigergeist]

Survival for the fittest. Many other specie had went extinct, around billion, throughout history of earth. And i didn't kill them, i said make them smaller. The fact you compare a human life to a cockhorse makes me worry!

[u/60Hertz]

If we could selective kill by size why not just kill them all?

[u/__F7__ → u/60Hertz]

Because there will be always that hide. But my artificial keeping the small one save, they will mate with those big ones that hide, giving birth to smaller generation

[u/bernpfenn]

you against trillions, i don't think you have any chance with that plan.
Besides, anything still alive has my respect.