They are called earthworms. This isn't news or some new discovery. Anyone who gardens is aware of what they can do and the benefit they provide.
If you have a back yard of any size, there is zero excuse for dumping food waste into the trash. You can buy prefabricated composters or make your own. I have several places in my yard where I dump anything that will decompose. I have a few large containers as well as a couple of larger planter boxes that get food waste and the pine cat litter dumped in it.