This chapter envisions an engineering and engineering design paradigm grounded in justice toward animals. Achieving this shift necessitates reconceptualizing the natural world and all its inhabitants as being valued not merely as means to an end, but as ends in themselves. The discussion encompasses anthropocentric, zoocentric, biocentric, and ecocentric ethical frameworks. The lifeboat ethical dilemma serves as an illustrative case study. Furthermore, both “both/and” and “either/or” approaches to decision-making in engineering are examined.