It astounds me that people legitimately assume that the other animals on this planet don't feel pain. It seems incredibly obvious to me that they would, or that we should at least be assuming they would.
They assume, at various times, even other humans arent human enough therefore the same concepts (such as pain & suffering) don't really apply.
It's a standard coping mechanism that might be necessary but it's definitely misused by humans for no other reason than greed (especially in times when scarcity isn't really a notable concern).
I hope this knowledge leads people to be more kind to animals.
These discussions are pretty laughable as we enter a new period of genocide and global warfare. People are cannibalistic monsters and the idea that they would change their behavior based on human suffering (let alone animal suffering) is constantly proven wrong. So really I don't think the debate here is whether other animals feel pain, but whether people should continue existing as a species to observe them.
Animals also rape each other (and sometimes other species), kill the children of other fathers, urinate and shit wherever they want... To be logically consistent, you're also arguing that all of those things are fine for us to do too.
I once had to put down a pet goldfish that was dying, and I did it the wrong way, and it was extremely traumatizing. I still feel bad about it and it's been 8 years.
I could tell it was in pain. Or it certainly seemed like it was suffering. I think we just need to observe animals more.
The only thing I struggle with is how to handle bugs. Especially when they become pests or are a risk of carrying disease. I'm curious if we can figure out a way to navigate that one day.