Texas Company Hatches Live Chicks from Artificial Eggs in De-Extinction Breakthrough

On May 19, 2026, Dallas-based Colossal Biosciences released a video of baby chickens emerging from transparent, 3D-printed cups — not traditional eggshells. The company said 26 live chicks had hatched from its "fully artificial egg system," a platform it described as a first-of-its-kind incubation technology that could one day support the resurrection of extinct birds, including the dodo and the South Island giant moa [1][2].

The announcement generated headlines worldwide. But it also drew sharp criticism from scientists who noted the company had released no peer-reviewed paper, no publicly available dataset, and no independent verification of its claims [3][4]. The result is a familiar pattern in the de-extinction space: a splashy demonstration that raises more questions than it answers.

What Colossal Claims It Built

The artificial egg system consists of three components: an ultra-thin silicone membrane (20 microns thick) that regulates water evaporation and oxygen transfer, a rigid 3D-printed titanium lattice with hexagonal pores for gas exchange, and a transparent lid that allows researchers to observe embryonic development in real time [2][5].

According to the company's press release, embryos, yolks, and egg whites from fertilized chicken eggs were transferred into the artificial shells within 36 to 40 hours after laying. Calcium was added to replicate nutrients normally provided by the shell. The chicks hatched approximately 18 days later [1][5].

Chris Lambert, Colossal's hardware manager, told Time that the membrane's precision is critical: "A precise amount of water each day needs to exit the egg, so that membrane is 20 microns thick" [2]. CEO Ben Lamm described the challenge as "ultimately a biology problem wrapped in an engineering problem" [1].

The system is designed to be size-scalable. Colossal says it could accommodate eggs as large as those laid by the South Island giant moa — estimated at roughly 80 times the volume of a chicken egg and eight times the volume of an emu egg [1][2].

What the Company Did Not Disclose

For a breakthrough of this magnitude, the gaps in publicly available information are significant.

Colossal did not report how many embryos were loaded into artificial eggs to produce the 26 successful hatches, making the actual success rate impossible to calculate [3][4]. The company did not disclose survival duration of the hatched chicks beyond describing them as "healthy" or provide specific health metrics [3]. Previous artificial egg systems developed by academic researchers have shown consistently low hatching rates, making them "inefficient and unpredictable," according to Scientific American [3].

Most critically, the company confirmed it has no plans to publish its findings in a peer-reviewed journal. "The company also said that it has not released a peer-reviewed paper or publicly available dataset," Scientific American reported. "Independent scientists have not yet evaluated the methodology" [3].

Ben Lamm confirmed the absence of a planned paper to Nature [6]. Without published data, the claims rest entirely on the company's own press release and accompanying video.

The Expert Reaction: Praise for the Engineering, Skepticism About the Framing

The scientific response split along a clear line: several researchers acknowledged the engineering achievement while questioning how it was presented and what it means for de-extinction.

Vincent Lynch, an evolutionary biologist at the University at Buffalo, called the system "a really cool piece of biotech development" — but cautioned that "they haven't developed all the other parts" of what makes an egg function [4]. Neil Gostling of the University of Southampton told the Smithsonian that he was "genuinely blown away by it" [5].

Others were less impressed. Chris Elphick, an ornithologist at the University of Connecticut, noted that the technique "seems to involve pouring the contents of a natural chicken egg into an artificial shell" [3]. Paul Mozdziak of North Carolina State University said: "Without data, it's really impossible to judge what the true impact is" [5].

Hans Cheng of Michigan State University placed the work in context: the artificial egg represents "just one of many hurdles they have to overcome" on the path to de-extinction [4]. Christopher Preston of the University of Montana pointed out that avian genetic engineering presents "much different and trickier" challenges than mammalian genetic modification [4].

From Chicken to Dodo: The Technical Chasm

The distance between hatching a chicken in a synthetic shell and reconstructing the dodo — a bird that went extinct on Mauritius around 1681 — is vast and involves at least three separate unsolved problems.

Genome reconstruction. In 2022, researchers announced the near-complete sequencing of the dodo genome from a well-preserved skeletal specimen found in a Mauritian cave [7]. But "near-complete" is not complete. DNA degrades over centuries through hydrolysis and oxidation, breaking into fragments. Post-mortem chemical modifications like deamination introduce sequencing errors [7][8]. Regions with elevated GC content (above 60%) are particularly difficult for current sequencing technologies, and getting the genome organization right is, as one researcher put it, "extremely difficult" — closely related species provide clues but no guarantees [8].

Avian genetic engineering. Unlike mammals, where CRISPR-based editing of embryonic cells is well established, avian genetic engineering requires working with primordial germ cells (PGCs) — the precursors to egg and sperm cells. Until recently, PGC culture was only feasible in chickens and geese. Colossal's Avian Genetics Group announced it had successfully cultured pigeon PGCs for the first time, using the Nicobar pigeon — the dodo's closest living relative [9]. This is a genuine advance, but turning cultured PGCs into functional reproductive cells that produce viable dodo-like offspring remains unproven.

Ecological reintroduction. Even if a dodo proxy were created, the Mauritius it would return to bears little resemblance to the island the dodo inhabited. Invasive rats and macaques — the same predators that drove the dodo's extinction — remain present [10]. Nearly a third of the island's native fruits are no longer being dispersed because no surviving animals are large enough to swallow their seeds, a cascade of ecological damage from 400 years of extinctions [11]. Colossal has formed a Mauritius Dodo Advisory Committee and partnered with the Mauritian Wildlife Foundation, but habitat restoration is a decades-long project that must precede any release [9][10].

Victoria Herridge, a paleobiologist at the University of Sheffield, put it bluntly: "Nothing will ever bring back a mammoth; nothing will ever bring back a dodo. Extinction really is forever" [3].

The Money Behind De-Extinction

Colossal Biosciences is not a bootstrapped proof-of-concept. It is one of the best-funded biotech startups in the world, with a $10.2 billion valuation as of January 2025 [12].

Source: TechCrunch, D Magazine, PitchBook

Data as of May 19, 2026CSV

The company has raised over $828 million across multiple rounds: a $75 million Series A, a $150 million Series B (later extended to $163 million), and a $320 million Series C led by TWG Global, with an additional $120 million extension in September 2025 [12][13][14]. Its investor roster includes Thomas Tull (co-founder of Legendary Entertainment), Bob Nelsen (ARCH Venture Partners), filmmaker Peter Jackson, hedge fund manager Paul Tudor Jones, novelist George R.R. Martin, and athlete Tom Brady [12][13].

The company's revenue model extends beyond de-extinction. Colossal generates income through technology licensing to biotech firms and research institutions, government partnerships for conservation, and spin-off companies including Form Bio (which raised $35 million) and Breaking ($10.5 million in seed funding) [13]. Future plans include entering the biodiversity credits market once species reintroduction begins [13].

This diversified approach distinguishes Colossal from a pure de-extinction play. The artificial egg technology, if validated, could have independent commercial value in poultry science, conservation breeding programs, and zoo management — regardless of whether a dodo ever hatches [5][4].

The Conservation Funding Debate

Critics of de-extinction raise a persistent question: could this money do more good protecting species that are still alive?

Source: OpenAlex

Data as of Jan 1, 2026CSV

Academic interest in de-extinction has grown significantly, with nearly 3,900 papers published on the topic since 2011, peaking at 482 in 2024 [15]. But Stuart Pimm, a Duke University ecologist, argued that addressing "immediate threats of disappearing habitats, collisions with building windows, and prowling outdoor cats" would more effectively help endangered birds today [4]. Michael Parr of the American Bird Conservancy noted that existing breeding programs succeed without artificial eggs and suggested this may be "a more expensive way of reaching the same results" [3].

Nic Rawlence, a paleogeneticist at the University of Otago, argued the focus should be on endangered living species like the kākāpō — a critically endangered New Zealand parrot — "rather than bringing in the whole de-extinction angle" [3].

Defenders counter that de-extinction funding is not zero-sum. A 2021–2024 analysis of U.S. conservation finance found that every dollar invested in de-extinction came from private sources and coincided with a net rise in public and NGO conservation budgets — a "crowding-in effect" that expanded total available funding for biodiversity protection rather than cannibalizing it [16]. Colossal also argues its conservation partnerships in Mauritius and elsewhere produce tangible habitat restoration benefits that extend beyond any single species [9].

The empirical question — whether de-extinction spending displaces or supplements traditional conservation — remains unresolved, and the answer likely varies by funding source and geography.

The Regulatory Void

No existing regulatory framework was designed for de-extinct organisms. In the United States, jurisdiction would potentially span multiple agencies: the USDA for animal health and welfare, the FDA for genetically engineered animals, the U.S. Fish and Wildlife Service for wildlife management under the Endangered Species Act, and CITES for international transport [17][18].

But these frameworks contain significant gaps. A 2026 analysis published in the journal Ecology and Evolution noted that current legal structures "may not be capable of regulating the welfare, breeding, use, and restoration of engineered de-extinct animals" [17]. The ontological ambiguity is a core problem: when Colossal's team created genetically engineered wolf pups in late 2024 and early 2025, the organisms' legal classification was unclear [17]. In an earlier case, the USFWS classified a cloned banteng as a "hybrid" and excluded it from the wild population, while the Species Survival Plan considered it a banteng and included it in their studbook [17].

Colossal has not publicly disclosed engagement with any of these regulatory agencies regarding the artificial egg technology or its dodo program specifically.

What Comes Next

Colossal says its next steps include testing the artificial egg system with emu and ostrich eggs — birds whose eggs are progressively larger and closer to moa-egg dimensions [1][2]. The company is also developing what it calls a "self-hatching lattice structure" and "robotic-assisted embryo transfer protocols" [1].

Ben Lamm has estimated the mid-2030s as the target window for a moa hatching, though the company has not set a public date [2]. The dodo timeline is even less defined: Colossal has said it could be revived "within four or five years," though scientists outside the company view this as optimistic given the unresolved challenges in genome reconstruction and avian genetic engineering [9][4].

For now, the 26 chicks have been moved to a Texas farm where they will live out their natural lifespans [2]. They are ordinary chickens, hatched by an extraordinary method, and the question of whether that method can bridge the gap to de-extinction remains open. The science is real but early, the funding is enormous but concentrated, and the regulatory and ecological frameworks that would govern success do not yet exist.

The artificial egg is a proof of concept. Everything that follows — scaling it, engineering the genetics, restoring the habitat, navigating the regulations — is the actual work.