Should we intervene to reduce suffering in nature? What's feasible today? And what does a long-term vision for wild animal welfare look like?
Wild animals vastly outnumber farmed or companion animals. The total population of wild vertebrates alone runs into the hundreds of billions. If these animals experience suffering — from predation, disease, starvation, parasites, and weather extremes — then wild animal welfare represents the largest welfare problem on the planet, by orders of magnitude. Yet it receives almost no attention from welfare advocates, governments, or researchers. This page examines the case for caring about wild animal welfare, what interventions are feasible today, and the longer-term research agenda.
Oral vaccine baiting has successfully eliminated rabies from fox populations across Europe. CDV (distemper) vaccines have been deployed for African wild dogs. Expanding vaccination programs to reduce disease suffering is technologically ready.
Treating injured wild animals — from oil spill rehabilitation to care for orphaned wildlife — is widely practiced. Scaling and improving rehabilitation infrastructure reduces suffering for millions of individual animals annually.
PZP (porcine zona pellucida) and GonaCon vaccines provide reversible fertility control for ungulates, horses, and elephants. Already used in Assateague Island (wild horses), multiple African national parks, and urban deer populations. Reduces suffering from overpopulation-driven starvation.
When population reduction is necessary, welfare-optimal methods (high-powered rifles, projectile delivery of anaesthetics) cause less suffering than current approaches. Improving culling welfare is an underutilized opportunity.
Active snare removal in high-density areas significantly reduces numbers of animals dying slow deaths in wire snares. Multiple programs operating in Africa and Asia. High welfare impact per dollar.
Wildlife crossings, fencing, and road modification reduce vehicle collisions — a major source of injury and death for many species. An estimated 1 million vertebrates killed on roads every day in the USA alone.
Modified fishing gear, acoustic deterrents, and seasonal closures reduce bycatch — accidental capture of non-target species. ~40% of all fish caught globally are discarded as bycatch; most die.
Targeted antiparasitic treatments for high-density populations could reduce chronic suffering from parasites. Research needed on systemic effects and delivery mechanisms. Feasible for managed populations (conservation herds, rehabilitation centers).
The Wild Animal Initiative (WAI) and related researchers have identified a long-term agenda for understanding and improving wild animal welfare:
The vast majority of individual wild animals are small — rodents, birds, fish, and invertebrates. If insects experience pain (contested but possible), they represent incomprehensibly vast suffering. Even if we focus only on vertebrates, wild rodent populations alone number in the hundreds of billions. Interventions at this scale require fundamentally different approaches than current wildlife management.
A sensible approach to wild animal welfare doesn't require solving all philosophical questions immediately:
The scale of potential suffering in wild populations is enormous. The research and interventions to address it are just beginning.
Wild Animal Welfare Wildlife Rehabilitation Support WAI and Others