Animals, Plants, and Other Organisms that Should Have Never ExistedThis is the list of organisms that should have NEVER evolved or continue to exist till modern times. Feel free to submit the unwanted organisms.
The Top Ten
Lol. I had no idea those were real.
House cat because they're one of the worst invasive species. House/domestic cats are responsible for killing off many small animals of endemic islands (Australia, Hawaii, New Zealand, etc) to extinction. Don't let that cuteness cool you, cats have mostly negative impact towards almost all small animals of all islands due to predation on species that naturally never experienced many predators. The world would be better off without domestic cats.
But I love cats!
But lots of careless pet owners released cats, causing cats to kill off many small animals in islands and Australia to extinction. Believe it or not, the people of Australia (especially conservationists) are suggesting outlawing cats from Australia to save the native animals.
They need to be killed off - ElSherlock
Actually, not all of them since some play the important role of pollinating plants and is a primary food source of some species of bat or birds. I would just eradicate all diseases and viruses the mosquitoes may carry, to make sure that the ecosystem doesn't collapse. - DinoLover4242
It causes white-nosed syndrome that is killing off many endangered bat species of North America, and therefore, this should have NEVER existed.
Why is the human on this list? This list was meant for non-human organisms. - DinoLover4242
Some of these other species are invasive, but we can decimate.
So do you hate yourself.
You are now entering the spider section of this list - Pieclone