Wild animals face enormous amounts of suffering from predation, parasitism, starvation, and disease. Understanding wild animal suffering challenges simplistic ideas about nature as inherently good.
Wild animal suffering is the most challenging frontier of animal welfare ethics. Naturalistic conceptions of the wild as inherently harmonious misrepresent the reality of most wild animals lives — dominated by hunger, fear, injury, parasitism, and death, often in painful ways. If animal suffering matters morally, and if the number of wild animals is vastly larger than the number of domestic animals, the scale of potential welfare concern in nature dwarfs human-caused animal use. This insight drives a growing field of wild animal welfare research examining both the extent of wild suffering and the feasibility of targeted interventions. Concrete interventions — wildlife vaccination programs, emergency response to disease outbreaks, habitat quality improvements — are already practiced with welfare benefits. More radical interventions remain speculative and controversial.