Colossal Biosciences Delayed Woolly Mammoth Revival
The company has extended its development timeline to the early 2030s following increased genetic complexity.
Updated on Sept. 26, 2026 in Life Sciences
Live Poll
Do you support the use of gene-editing technology to bring extinct species back to life?
Colossal Biosciences announced a delay in its woolly mammoth de-extinction project, pushing the expected revival timeline into the early 2030s. The company reached this decision after determining that creating a viable mammoth embryo requires 150 gene edits rather than the 60 previously planned.
Why it matters
The expanded scope of required genetic modifications highlights the extreme technical challenges of bringing back extinct species. This adjustment reflects a pivot toward more complex genome engineering as the project transitions from proof-of-concept experiments to embryo development.
Researchers have increased the target gene-edit count to 150 to better replicate mammoth traits, such as ear size. This comes after the successful creation of 38 woolly mice using mammoth genetic coding.
The players
Colossal Biosciences
A Dallas-based biotechnology company focused on de-extinction, utilizing CRISPR and AI to modify elephant genomes.
The details
Scientists are using CRISPR — a tool that allows for precise modification of DNA sequences — and AI to edit elephant nuclei to incorporate mammoth genetic material. The researchers are using DNA recovered from a frozen specimen discovered in Siberia in 2018 to inform these changes. The increased gene count is necessary to better account for the phenotypic complexity of the extinct mammal.
Timeline
2018: Mammoth remains discovered in Siberia.
2024: Company forecast a four-year timeline for revival.
2025: Company successfully de-extincted the dire wolf.
September 26, 2026: Colossal Biosciences announced the revival timeline delay.
Early 2030s: Company expects to revive the woolly mammoth.
The Tech Race
The woolly mammoth revival project sits at the forefront of de-extinction efforts, following Colossal Biosciences' successful 2025 de-extinction of the dire wolf. The increase to 150 gene edits demonstrates the rising technical bar for recreating complex mammalian traits.
The delay shifts the anticipated milestone for the mammoth project into the next decade, meaning no near-term public applications exist. Interested stakeholders should watch for future technical disclosures regarding the efficacy of the 150-edit methodology.
The takeaway
The move from 60 to 150 gene edits illustrates that de-extinction is limited more by genetic complexity than initial modeling suggested. Observers should track subsequent progress reports on embryo viability to see if further target adjustments are required.
Further reading
For more on the current state of genetic engineering and de-extinction, visit the Life Sciences section.
Source note: This article includes information reported by New York Post.
Live Poll
Do you support the use of gene-editing technology to bring extinct species back to life?
