Revive & Restore is working with de-extinction scientists worldwide to build a roster of potentially revivable species. From the perspectives of conservation biology and molecular biology, criteria are emerging for determining which ones are most practical and desirable to attempt to bring back.
- Iconic? Beloved? Missed?
- Did the species play an important ecological role?
- Was the species the last of its genus or family, and not just one sub-species among several surviving sub-species?
- Will having the species back help answer important scientific questions?
- Was the extinction recent?
- Close living relative available?
- Deep-frozen tissue or germ plasm available?
- Well preserved specimens with “ancient DNA” available?
- Manageably smallish genome?
- Enough specimens for genetic diversity?
- Eggs accessible in the living related females for easier cloning?
- Original habitat intact or restorable?
- Are original causes of the extinction known and correctable?
- Will the species breed easily in captivity?
- Are its skills for the wild independent of wild-parent training?
- Is rewilding workable for the species?
- Is rewilding the species workable for the habitat?
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