Colossal Biosciences, a company based in Texas, has announced a breakthrough: the hatching of 26 healthy chicks utilizing their “artificial egg” system. This achievement marks a significant stride toward the potential de-extinction of species like the dodo and the moa. The news was reported by National Geographic, citing a statement from Ben Lam, the CEO and co-founder of Colossal.
The artificial egg is constructed from a silicone membrane housed within a rigid, hexagonal casing. This casing features a transparent viewing window, allowing for observation of the developing embryo. The semi-permeable nature of the material facilitates efficient gas exchange and moisture retention, effectively mimicking the properties of a natural eggshell.
The dimensions of these artificial capsules can be adjusted, ranging from the size suitable for a hummingbird to scales comparable to the extinct giant moa, a bird that stood nearly 3.7 meters tall – surpassing even the modern ostrich.
It’s important to note, however, that the company’s report has not yet undergone peer review. Consequently, Colossal has not disclosed the success rate of chicks hatching from these artificial eggs.
Experts not involved in the Colossal project have pointed out the limitations of the current experiments. Specifically, they highlight that only a protective membrane has been created, rather than a complete egg structure. Furthermore, in avian genetic engineering, the embryo typically consists of only one or two cells at the stage of artificial incubation, whereas in nature, a bird’s egg contains approximately 50,000 cells when laid.
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