This is one of the few parts of Buddhism that is still very debatable to me. I've hated bugs since before I can remember, I always felt that they were like little robots which could not think or feel, whose only goal was population control of sentient beings (ex mosquitoes killing people). I wouldn't go out of my way to kill them, but if they got in my house I would immediately dispose of them without even thinking. After becoming a Buddhist, I stopped hating bugs (I had to haha). I stopped killing completely and no matter what I would try to relocate bugs that got in the way inside my house (Sometimes they'd die along the way and I would feel bad). I dislike bugs because of what they are, but I don't hold grudges on them like before. I figured that it was bad killing the bugs not because of their death, but because when I killed them it was either out of anger or fear. I still don't count bugs very highly, and I honestly put them in the same category as plants even if I won't kill them. While it's not something known for sure, what do you all think about bugs and the value of their lives?
Are certain animals ranked differently according to their karmic penalty or is it provisional?
Would it be worse to kill a cat than a cock roach etc?
If intent is a factor then would you recieve a lighter Karmic penalty for killing someone in self-defence or by accident?
Humans can be reborn as insects correct? If so, then aren't they stuck in that form forever? Bugs can't think, and therefore can't build up ANY karma whatsoever. They'd never be able to progress or regress, and would be stuck like that for all eternity.
I know this is a lot of questioning, but answering as many would be greatly appreciated. I'd love to broaden my perspective.