Examining the philosophical debate around wild animal suffering and the emerging field of welfare biology that considers intervention in nature.
Wild animal suffering presents some of the most challenging questions in applied ethics. The suffering that occurs naturally in wild ecosystems — prey animals killed by predators, animals starving in winter, parasitic infections, and disease outbreaks — raises the question of whether geographic location and human causation are morally relevant factors in our obligations to reduce suffering. While most practical animal welfare work focuses on animals under human control, the philosophical arguments for considering wild animal suffering are gaining traction in academic ethics. The precautionary principle of avoiding large-scale ecosystem interventions without understanding consequences remains compelling, but smaller-scale, reversible interventions including vaccination programs for wild animals and fertility management are already practiced and accepted.