In a North Texas laboratory, the boundary between extinction and existence has been crossed for the first time in recorded human history. Colossal Biosciences has combined artificial intelligence, ancient DNA, and CRISPR gene editing to produce three living dire wolf pups — animals whose lineage vanished more than twelve millennia ago. The achievement forces humanity to reckon with questions older than science itself: what do we owe the creatures we have lost, what authority do we hold over life's design, and whether restoration and creation are truly different acts.
Scientists Use AI and Gene Editing to Resurrect Extinct Dire Wolves and Woolly Mammoths
If it looks like a duck, quacks like a duck, it's a duck.
Mark
So these dire wolf pups—are they actually dire wolves, or are they something else entirely?
Mimi
That's the question everyone asks, and honestly, it depends on how you define the word. The pups carry reconstructed dire wolf DNA, but they were gestated by domestic dogs and have some gray wolf genetics mixed in. Colossal's position is that if it functions as a dire wolf, it is one.
Luke
But we should be clear: the genome was reconstructed by AI filling in gaps. We don't have a complete, unbroken dire wolf genome from 12,500 years ago. The AI made educated guesses based on patterns. That's not nothing, but it's not the same as having the original blueprint.
Mark
And the woolly mammoth project—that's even more different, right? It's not reconstructing an extinct genome at all.
Mimi
Right. They're taking Asian elephant cells and inserting mammoth genes for cold tolerance. It's more like genetic engineering than de-extinction in the traditional sense. But the company argues that if it survives in the Arctic and does what mammoths did ecologically, the distinction is semantic.
Luke
The ecological argument is interesting, but it's also speculative. We don't actually know if engineered mammoths will compact snow effectively, or whether they'll survive in modern Arctic conditions, or what unintended consequences might emerge. Those are real unknowns.
Mark
What's the timeline looking like?
Mimi
The dire wolves are already here—born in October 2024. For mammoths, Colossal is targeting the 2030s. Lamm has said they expect to deliver more extinct species within the next year or two.
Luke
And we should note: this is one company's timeline and one company's claims. Independent verification of these births and the genetic work is important. The reporting here is solid, but we're largely hearing Colossal's own framing of what they've accomplished.
Mark
Does this actually help with climate change, or is that more of a marketing angle?
Mimi
The theory is real—mammoths could theoretically help preserve permafrost by compacting snow and trampling vegetation. But whether it works at scale, whether you'd need thousands of mammoths, whether the ecological disruption would be worth it—those are open questions.
Luke
And there's a gap between "could theoretically help" and "will help." We don't have data yet. This is a hypothesis dressed up as a plan.
Le Pouls
- Three dire wolf pups — Romulus, Remus, and Khaleesi — were born in October 2024, marking the first time a species extinct for over 12,500 years has been physically returned to the world.
- Ancient DNA recovered from fossils is too fragmented to work with directly, so AI models reconstructed the missing genetic sequences, raising immediate questions about how much of the result is discovery and how much is invention.
- Critics argue the pups are genetically modified gray wolves wearing a dire wolf's identity, while Colossal's CEO fires back that nature itself has been modifying wolves for millennia — the difference is only the laboratory.
- The woolly mammoth project escalates the stakes further, targeting Arctic ecosystem restoration by engineering cold-weather mammoth traits into Asian elephants, with first births aimed for the 2030s.
- The deeper tension is unresolved: science has proven the method works once, but whether engineered animals can survive in modern ecosystems — and whether the world will accept them as real — remains an open question.
In a North Texas laboratory, the boundary between extinction and existence has been crossed for the first time in recorded human history. Colossal Biosciences has combined artificial intelligence, ancient DNA, and CRISPR gene editing to produce three living dire wolf pups — animals whose lineage vanished more than twelve millennia ago. The achievement forces humanity to reckon with questions older than science itself: what do we owe the creatures we have lost, what authority do we hold over life's design, and whether restoration and creation are truly different acts.
What was once Hollywood fantasy has become a working laboratory in North Texas. Colossal Biosciences is using artificial intelligence, CRISPR gene editing, and ancient DNA to bring extinct animals back to life — among them dire wolves, woolly mammoths, dodo birds, and Tasmanian tigers. CEO Ben Lamm acknowledges the Jurassic Park comparison freely, while insisting the science is something the fiction never was: real.
The first proof arrived on October 1, 2024, when three dire wolf pups were born from domestic dog surrogates. Scientists had extracted fragmented genetic material from a fossilized skull and tooth, then used AI to reconstruct the complete dire wolf genome from the broken pieces — filling in what time had erased by reading patterns in the code. The assembled genome was then compared to that of the gray wolf, the dire wolf's closest living relative, and CRISPR was used to edit gray wolf cells into viable embryos.
When critics call the pups genetically modified gray wolves rather than true dire wolves, Lamm calls the distinction semantic. Gray wolves, he argues, are themselves the product of millennia of natural genetic modification — the laboratory simply compressed the timeline. The philosophical question of what makes a resurrection authentic remains open, but Lamm's position is pragmatic: if it functions as a dire wolf, it is one.
The woolly mammoth project takes a different approach, inserting mammoth cold-weather traits into Asian elephant cells rather than reconstructing an entire ancient genome. The ecological argument driving it is serious: herds of heavy mammoths could compact Arctic snow, allowing freezing air to preserve thawing permafrost, while their grazing habits could restore reflective tundra grasslands in place of heat-absorbing forests. Lamm traces the project's origins to a 2019 meeting with Harvard geneticist George Church, who had long imagined extinct-species resurrection as a proving ground for programmable biology.
With the dire wolf milestone behind them, Colossal is moving forward. The method — ancient DNA, AI reconstruction, CRISPR editing — has been proven at least once. What remains to be tested is whether these engineered animals can survive and function in the modern world, and whether humanity is prepared to decide what resurrection truly means.
What was once the stuff of Hollywood blockbusters has moved into a Texas laboratory. Colossal Biosciences, a biotechnology company based in North Texas, is actively working to bring extinct animals back to life using a combination of artificial intelligence, CRISPR gene editing, and ancient DNA extraction. The company's ambitions extend across multiple species lost to time: dire wolves, woolly mammoths, dodo birds, Tasmanian tigers, and the giant moa birds of New Zealand. The comparison to Jurassic Park is inevitable, and the company's CEO Ben Lamm acknowledges it readily—though he is careful to separate the fantasy from the science.
The first tangible success came on October 1, 2024, when three dire wolf pups were born in North Texas. Named Romulus, Remus, and Khaleesi, these animals represent the first living creatures successfully bred from the reconstructed DNA of a species that disappeared more than 12,500 years ago. The pups were carried and delivered by domestic dogs serving as surrogate mothers. To create them, scientists extracted fragmented genetic material from a fossilized skull and tooth, then used advanced AI models to reconstruct the complete dire wolf genome from the broken pieces. Ancient DNA degrades naturally over time, leaving scientists with only fragments—the artificial intelligence essentially filled in the missing sections by analyzing patterns in the genetic code. Once the full genome was assembled computationally, researchers compared it to the genetic code of the gray wolf, the dire wolf's closest living relative, and used CRISPR to edit living gray wolf cells into viable embryos.
When critics point out that the pups are technically genetically modified gray wolves rather than authentic dire wolves, Lamm dismisses the distinction as semantic. He argues that gray wolves are themselves genetically modified dire wolves, shaped by nature over millennia rather than in a laboratory. The question of what constitutes a "real" extinct animal versus an engineered approximation remains unresolved in the scientific and philosophical sense, but Lamm's position is that if the animal looks, behaves, and functions as a dire wolf, the distinction becomes academic.
The woolly mammoth project follows a parallel strategy but with a different end goal. Rather than reconstructing an entire genome from ancient fragments, Colossal is inserting mammoth cold-weather traits into the cells of modern Asian elephants. The company is targeting the birth of its first engineered mammoth sometime in the 2030s. Lamm uses a pragmatic framing: if it looks like a duck, quacks like a duck, and serves the ecological functions of a duck, it is a duck. By this logic, an elephant carrying mammoth genetic traits and adapted to Arctic conditions would be a woolly mammoth.
The mammoth project carries an ecological argument that extends beyond novelty or scientific curiosity. The initiative traces back to 2019, when Lamm met George Church, a Harvard geneticist widely regarded as the father of synthetic biology. Church had long envisioned using CRISPR to resurrect extinct animals as a testing ground for human medicine and programmable biology. But Lamm points to direct climate benefits as the primary motivation. Herds of heavy mammoths could compact dense snow across high-latitude Arctic zones, allowing freezing air to penetrate deep into the ground and preserve permafrost that is currently thawing. By felling trees and trampling shrubs, the animals could help transform heat-absorbing forests back into reflective tundra grasslands, potentially slowing or reversing some effects of Arctic warming.
Lamm has stated that people will likely see Colossal deliver additional extinct species back to Earth within the next year or two, and that more dire wolves are a possibility. The technology that made Romulus and Remus possible—the combination of ancient DNA extraction, AI-assisted genome reconstruction, and CRISPR editing—is now proven at least once. What remains to be seen is whether the ecological and conservation arguments hold up in practice, whether engineered species can survive and thrive in modern ecosystems, and how the public and scientific communities will ultimately define what it means to resurrect a species that has been gone for thousands of years.
Citations marquantes
Gray wolves are just genetically modified dire wolves. They were just done by nature or God or however you want to classify it.— Ben Lamm, Colossal Biosciences CEO, on the distinction between engineered dire wolves and their modern gray wolf relatives
We call it a woolly mammoth. Because if it looks like a duck, it quacks like a duck, it serves ecological functions of a duck, it's a duck, in our perspective.— Ben Lamm, on why engineered mammoths should be considered woolly mammoths
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