This week’s Torah portion, Ki Teitzei, contains several teachings about the treatment of animals. It includes the prohibition against taking eggs or baby chicks from a nest while the mother is there, which has become the basis for the prohibition of cruelty against animals (tzaar baalei chayim). Indeed, for the person who does this, it is written “it should be good for you, and you should lengthen your days.”
Indeed, the notion of preventing cruelty to animals was, until recently, unheard of, except in Torah. “‘Until the nineteenth century,’ wrote historian Cecil Roth, ‘cruelty to animals was nowhere illegal, except in Jewish law'”. (The Jewish Contribution to Civilization, pp. 343f). Rabbi Gershon Winkler, in commenting about the mother hen and baby chicks passage, argues, “The Torah is not interested in teaching you to feel compassion, but rather how to live compassionately.”
Rabbi Jill Jacobs writes, “Beyond simply prohibiting cruelty to animals, Jewish tradition associates care for animals with righteousness.” She cites (Proverbs 12:10): “A righteous person knows the needs of his beast, but the compassion of the wicked is cruelty.”