Thank you for the opportunity to help you with your question!
Ahimsa means to cause no harm.Jains believe that protecting every other soul is the only way to save one's own soul. The biggest part that ahimsa plays in the lives Jains today is in the regulation of their diet.They are not sopposed to harm any living organisms.Jains also believe that life is sacred regardless of faith, race, or even species.
Please let me know if you need any clarification. I'm always happy to answer your questions.