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When wildlife funding is limited, it should go to the proposal with the strongest credible net conservation benefit—not automatically to conventional conservation or to de-extinction. A de-extinction project should have to show that its proxy can benefit nature in a specific place, that the full program is feasible and acceptably safe, and that it will not displace a better opportunity to protect living species.
What is the real choice?
“De-extinction” is shorthand for efforts to create a proxy for an extinct species. It does not currently mean restoring that species in its complete genetic, behavioral, and physiological form. The International Union for Conservation of Nature’s Species Survival Commission (IUCN SSC) explains in its 2016 guidance that current approaches cannot produce a faithful replica in its entirety.
That distinction matters to a funding decision. Producing a proxy is not itself a conservation outcome. A proposal needs a plausible route from research and captive care to suitable habitat, a useful ecological role, and a managed release and monitoring program. Otherwise, a funder may be supporting an expensive technical achievement without establishing that it will help conserve biodiversity.
The comparison is therefore between complete programs, not between the cost of creating a proxy and the cost of one conventional intervention. Both options need a defined outcome, a realistic counterfactual, and a plan for what happens after the initial funding ends.
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What does the evidence say about opportunity cost?
There is a concrete reason to scrutinize whether de-extinction funding could be put to better use protecting living wildlife. A 2017 model using candidate species from New Zealand and New South Wales found that public funding for resurrected populations could mean fewer extant threatened species conserved under the scenarios studied. That result held even under optimistic assumptions about outside sponsorship for resurrection and cost sharing. The authors also noted that fully external sponsorship could create benefits, while emphasizing that discretionary funds still have an opportunity cost if they could instead conserve living species. The finding is a warning to examine each proposal, not a universal forecast for every species, location, funding arrangement, or future technology. Bennett et al., 2017
Funding source alone does not settle the issue. A private or philanthropic contribution is not necessarily additional to conservation: the relevant question is what the donor would otherwise have funded, and whether the program would also draw on scarce staff, facilities, habitat, or public resources. A proposal should make that counterfactual clear rather than treating “privately funded” as proof that no living-species work will lose out.
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How should the two approaches be compared?
Use the same decision criteria for a de-extinction proxy and for its strongest living-species or habitat alternative. The available sources do not establish a general, comparable lifetime dollar cost for a named de-extinction project paired with a specific conventional alternative, so a universal cost-per-species comparison would be misleading.
| Decision factor | Conventional conservation | De-extinction proxy |
|---|---|---|
| Intended outcome | Specify the living species, habitat, threat, or ecological function the action is meant to improve; define how the result will be measured. | Specify the intended conservation benefit beyond creating a proxy, including its ecological function and the place where it is expected to help. |
| Full program cost | Estimate the full costs of the selected intervention and its duration; a general comparable lifetime figure is not stated in the cited material. | Include research, captive population management, habitat preparation, transport, release, post-release care, monitoring, contingency response, and staff time. No general comparable lifetime figure is stated in the cited material. IUCN SSC guidance, 2016 |
| Alternative | Compare the proposed work with other ways to address the same threat or ecological need. | Assess whether an extant species or another intervention could provide the intended function more quickly, cheaply, or predictably. |
| Risks and ability to respond | Identify the likely harms and how managers will detect and address them. | Assess animal welfare, effects on surrogate animals, pathogens, invasiveness, human-wildlife conflict, hybridization, ecosystem effects, and whether a release can be controlled or reversed. |
| People and place | Confirm suitable conditions, local partners, and the ability to sustain the work. | Also confirm habitat suitability, controllable original threats, local community consent, Indigenous Peoples’ approvals where relevant, and capable long-term partners. |
| Accountability | Set goals and success criteria in advance, monitor results, and adapt if the intervention is not working. | Do the same, while making resource tradeoffs transparent and setting stop or adaptation criteria if harms exceed expected benefits. |
The table is a decision framework, not a claim that one approach always costs less or carries less risk. Its purpose is to make the missing comparisons visible before money and capacity are committed.
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What evidence supports conventional conservation?
Conventional conservation is not guaranteed to succeed, but it has a substantial body of evidence behind it. In its account of a 2024 meta-analysis, IUCN reported that conservation interventions improved biodiversity or slowed its decline in 66% of analyzed cases compared with taking no action. That is a share of cases in the analysis, not a 66% success probability for any particular project. The account describes examples including lower deforestation in managed logging concessions and improved nesting success after predator management. The study’s authors also called for more rigorous research across additional intervention types and countries. IUCN, 2024
This evidence makes it reasonable to compare a proposed proxy with practical actions already available at the intended site, such as managing threats or restoring habitat. It does not mean every established intervention is effective in every setting; the outcome depends on whether the action addresses the local cause of decline and can be sustained.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How can a funder test whether a proxy has a conservation case?
IUCN SSC guidance says an explicit, positive conservation rationale is needed, alongside comparison with ecological alternatives and transparent accounting for diverted resources. A funder can translate that into a set of questions that must be answered before approving a project:
- What additional benefit is expected? Name the threatened species, ecosystem function, or extinction-risk reduction the project targets. State the measurable outcome and what is expected to happen without the project.
- Is the funding genuinely additional? Document the donor’s likely alternative allocation, as well as any public funds, staff, facilities, or partner capacity the program would use.
- Is there a feasible ecological alternative? Compare the proxy with suitable extant species and other interventions. IUCN SSC cautions that an extant replacement may be easier, less costly, quicker, and better understood; the proxy should demonstrate why it would achieve the intended function better and with less cost or risk than translocating a living species.
- Can the whole program be delivered? Account for the work after creation, including habitat and threat management, care, release, monitoring, contingency planning, and the people needed to carry it out over time.
- Can harms be detected and managed? Set out animal-welfare safeguards, ecological risk controls, monitoring, and a plan to stop or adapt the project if results or harms differ from expectations.
- Do the people connected to the site support it? Establish local community consent, Indigenous Peoples’ approvals where relevant, and long-term partnerships with the capacity to manage the work.
The IUCN Species Threat Abatement and Restoration (STAR) metric can help estimate how specific investments may contribute to reducing extinction risk. It is a tool for assessing potential contribution, not a substitute for estimating a program’s full cost, evaluating ecological risks, or comparing it with a credible alternative at the same place.
What do recent conservation commitments show—and what do they not show?
In 2026, IUCN announced the Phoenix Species Project with $200 million committed at launch and a stated scope of supporting 100 highly threatened or Extinct in the Wild species across 30 countries. Those figures describe the initiative as announced; they are not measured recovery outcomes and do not establish a cost-per-species comparison with de-extinction. IUCN, 2026
The example illustrates why funders should distinguish commitments and intended scope from demonstrated results. Anyone considering support for a conservation initiative should check its current program status, eligibility, and donation route directly, and look for locally led recovery work with published goals and reporting.
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