viel wrote:A sentient being is an organism that experiences, that's what sentience means:)
Dogs are sentient, people are sentient, algae isn't and I am not sure about spiders:)
Spiders and all insects are sentient beings. Therefore, any Buddhist should not kill them, and this is not a joke.
I agree that algae are not sentient because they are basically like plants but are even simpler in structure. It's harder to tell if protazoa like amoebas are sentient or not.
I suppose the general rule should be "When in doubt, don't harm it." Of course, we probably kill many microorganisms each day just by walking around, so some things we can't avoid.
The Jains are experts at non-violence. I should read more about their techniques to avoid harming creatures.