question #3 Sahih al-Bukhari 4016, 4017, Book 64, Hadith 66 : What is the significance of distinguishing between harmful and harmless creatures in Islamic teachings?

Ibn `Umar used to kill all kinds of snakes until Abu Lubaba Al-Badri told him that the Prophet (ﷺ) had
forbidden the killing of harmless snakes living in houses and called Jinan. So Ibn `Umar gave up
killing them.