Maki-sama
This is Kawaguchi Hidetoshi. This is a humble answer to the question.
In this natural world, it is self-evident that humans cannot exist without animals, of course, while there are activities such as great luck. I believe that we humans are required to be grateful and rewarded for things in the natural world with a spirit of helping, supporting, and sharing.
Of course, bad acts caused by human arrogance, greed, etc. will always lead to bad consequences. I know that it is necessary to avoid “damage” to things in the natural world that is more than necessary without knowing enough.
Also, in past questions, I have answered questions about animals that are slaughtered. I think everyone's answers will be helpful, even if only a little bit.
The question “did I kill him?”
http://hasunoha.jp/questions/128
“... everyone is living to the fullest in this lucky world. If you can give even a little thought to them themselves, take good care of them, and respond with remorse; for example, think about the natural environment even a little bit, keep protection and ecology in mind, or if there are creatures that are in trouble because they suddenly drown in water, gently help them, or walk with concern about the ground so they don't step on the creatures to death, etc., if you can be kind, I think it might be possible to cultivate a sense of compassion as well. ・・”
“Does the fear, sorrow, and suffering of innocent animals have a necessary meaning or reason during their evolution?” ... Regarding this question, it depends on the “relationship” about being born as a beast, and it is also necessary to think deeply about the state of reincarnation, so I can't go into a little detail here, but it is certain that each has a role in helping, supporting, and sharing in the natural world. For us, we want to continue to avoid insignificant “harm” to animals as much as possible.
Kawaguchi Hidetoshi Gassho