
Wild Animal Suffering...and why it matters
When thinking about nature and the lives of wild animals, we often picture dolphins swimming in the ocean or elephants and lions roaming in the savannah. We mostly picture large adult animals living lives characterized by freedom. However, this rose-tinted view of nature doesn't even come close to representing the lives of most wild animals.
In reality, the life of most wild animals is characterized not by freedom, but by struggle. They constantly deal with harsh weather, starvation, disease, and injuries, and much like a dog or a human would suffer in their position, they suffer as well.
The following is an overview of wild animal suffering, why it matters, and what we can do to help.

There are roughly8 billion humanson planet Earth.
For every human, there are roughly 3-4 farmed animals being farmed at any given moment.
…and that's not even counting farmed fish, which is estimated to be around 10-13 per person.



However… in the wild:
For every human, there are between:
10-50 wild birds
10-100 wild mammals
- 10-10,000 reptiles & amphibians
- 1,000 - 100,000 fish
- 10,000 - 10⁶ earthworms
- 600,000 - 7*10⁸ terrestrial arthropods








…in existence at any moment.
This means that the vast majority of individuals are wild animals. The scale is truly mind boggling.
There are roughly8 billion humanson planet Earth.
For every human, there are roughly 3-4 farmed animals being farmed at any given moment.
…and that's not even counting farmed fish, which is estimated to be around 10-13 per person.



However… in the wild:
For every human, there are between:
- 10-50 wild birds
- 10-100 wild mammals
- 10-10,000 reptiles & amphibians
- 1,000 - 100,000 fish
- 10,000 - 10⁶ earthworms
- 600,000 - 7*10⁸ insects
…in existence at any moment.
This means that the vast majority of individuals are wild animals. The scale is truly mind boggling.








Even Worse,Wild Animals Suffer in Terrible Ways:
Click on an item above to learn more.













Population Dynamics
Wild animals often have many children, but for their populations to remain stable, on average each parent can only have two offspring that reach adulthood. This means that the majority of animals die young.
Proposed solutions for Wild Animal Suffering
While the scale of wild animal suffering may be vast, implementing even partial solutions can make a significant difference to the individual animals we help. Here are a few proposed solutions many are working on.
Investing in research to develop new methods of assistance and optimize existing ones is crucial. This also includes studying how to measure animal wellbeing in the wild, population dynamics, and ecosystem impacts.
As scientists build a better understanding of the dynamics of wild animal welfare, they will be better able to advise policy-makers and wildlife managers as to what changes in practice are warranted by viewing wild systems through the lens of welfare.
Scientists could research how to best implement many of the more direct interventions discussed below, including developing educational outreach strategies to build broader support for wild animal welfare initiatives.
How You Can Help:
You can help by supporting organizations like Wild Animal Initiative that fund welfare biology research, or pursuing academic study in ecology, animal behavior, or conservation biology to contribute directly to our understanding of wild animal suffering.
Implementing targeted disease control programs can significantly reduce suffering in wild animal populations. Large-scale vaccination initiatives prevent both widespread mortality and the prolonged suffering associated with infectious diseases that naturally devastate wildlife communities.
Oral rabies vaccination programs exemplify this approach's effectiveness. In Europe, systematic distribution of vaccine-laden baits has reduced rabies incidence among fox populations by over 99% since the 1980s. Similar programs targeting raccoons in North America have created rabies-free zones across large territories, preventing thousands of deaths from this neurologically devastating disease.
Beyond rabies, wildlife vaccination has successfully addressed other welfare-impacting diseases. Plague vaccination in prairie dog colonies prevents population collapses, while avian influenza programs protect wild waterfowl populations. These interventions require species-specific vaccine formulations, strategic delivery mechanisms, and monitoring systems to track coverage and effectiveness.
Such programs demonstrate how medical interventions can address natural sources of suffering affecting millions of individual animals, representing a practical and scalable approach to improving wild animal welfare through conservation medicine.
How You Can Help:
You can help by volunteering with local wildlife disease monitoring efforts, or advocating for expanded government funding of wildlife vaccination programs through organizations like Wildlife Disease Association.
Policy advocacy in the context of wild animal welfare involves pushing for legislative and regulatory changes that protect wild animals from human-caused harms and, where possible, reduce suffering from natural causes. This includes advocating for laws that prevent harmful practices by humans such as wildlife trafficking, overhunting, or exploitation for entertainment, as well as those that can help reduce suffering due to natural harms such as natural disasters, disease, or starvation.
Policy advocacy can also promote the inclusion of animal welfare considerations in government decision-making processes. For example, advocates might work to have animal welfare considerations included in government planning processes, or add animal welfare topics to governmental research agendas. Although such policies might not have immediate direct impacts, they can increase the amount of funding that goes to wild animal welfare research and unlock larger future benefits to wild animals.
This approach often involves collaboration with conservationists, scientists, and lawmakers to create and enforce policies, though it's important to note that traditional habitat protection can benefit some animals and harm others, making it a relatively complex issue from a wild animal welfare perspective. The goal is to develop evidence-based policies that can effectively reduce wild animal suffering while building the research foundation needed for more targeted interventions in the future.
How You Can Help:
You can help by supporting policy organizations such as Animal Ethics, contacting your representatives about wildlife welfare legislation, or getting involved in local environmental policy initiatives.
Artificial Intelligence can significantly aid in reducing wild animal suffering through targeted ecosystem monitoring and intervention. Machine vision systems process visual data from cameras and satellites to track animal populations and habitat conditions at unprecedented scales. Network analysis algorithms map ecological relationships and identify vulnerable points in food webs and migration routes. Predictive modeling integrates climate, development, and resource data to forecast threats before they become critical.
By understanding ecosystem changes through these mechanisms, AI can inform interventions that minimize suffering from human-wildlife conflicts, habitat destruction, and natural hazards. This approach enables more effective ecosystem stewardship that prioritizes wild animal welfare while maintaining sustainable human-nature coexistence.
How You Can Help:
You can help by contributing to citizen science projects that feed data into AI monitoring systems, supporting organizations developing AI for conservation, or if you have technical skills, volunteering with projects that use machine learning for wildlife protection and ecosystem monitoring. Consider exploring career opportunities in AI for social impact through 80,000 Hours, which provides research-backed career advice for maximizing your positive impact.

Videos You Might Like
In this half hour video, Humane Hancock discusses potential solutions to wild animal suffering. Topics include vaccinations against disease, fertility control to prevent starvation, and genetic engineering. He presents several examples of each method which have already been employed as well as objections to such methods.
Common Objections to Helping Wild Animals

Wild animal welfare is way less tractable than many cause areas. But I think that's outweighed by the scale: humanity, factory farmed animals, and other captive animals collectively make up only 0.1% of vertebrates. The other 99.9% of moral patients alive today are wild animals (or more, if you count invertebrates). (source)
How Can You Help?
In addition to the above, you can find career opportunities, get career advice, and join a community here. Researcher? Read this starter guide, or apply for a grant!
View more opportunitiesOrganizations Working on Wild Animal Suffering









Other Resources You Might Like
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Together, we can make life better for wild animals.
The increasing moral concern for animals in recent years is a welcome development. It is becoming increasingly rare to find individuals who are indifferent to animal suffering. We understand that suffering is a negative experience for any individual who experiences it, regardless of their species or location, whether they are in a house, farm, or forest. Their suffering matters. It matters to them. And it should matter to us.
If you care about wild animals, we encourage you to join our mission to improve their lives. There is a lot to learn about the conditions that wild animals face. This page is just a brief overview of the issue. The reality is that many animals are in desperate need of help, and people like you have the power to make a difference. We hope you will choose to take action and help us in our efforts.
Thank you.
Please consider supporting our work!
This website would not be possible without your support. Thank you!
Special thanks
To our friends and advisors from Wild Animal Initiative, Animal Ethics and Rethink Priorities. Special thanks to Jack Hancock for written content and Kate Rodman for the wonderful illustrations. This website would not have been possible without everyone's dedication and support!
Credits and sources
- How many wild animals are there?
- Malnutrition, hunger and thirst in wild animals
- What is wild animal suffering?
- Weather conditions and nonhuman animals
- Rescuing trapped and injured animals
- Antagonism in nature: Interspecific conflict
- Diseases in nature
- Animals in natural disasters
- Population dynamics and animal suffering
- The Importance of Wild-Animal Suffering
- Efforts to Help Wild Animals Should Be Effective
- Essays on Reducing Suffering
- Why Vegans Should Care about Suffering in Nature
- Wild Animal Suffering on HandWiki
- Wild Animal Suffering Infographic by Stijn Bruers
- Estimates of global captive vertebrate numbers
- Fish: The Forgotten Farm Animal
- A landscape analysis of wild animal welfare