New Lab-Grown Chicks Spark Debate on Bringing Back Extinct Birds

A biotech team recently announced they hatched live chicks using a 3D-printed shell instead of a natural one. The experiment used fertilized eggs placed into this artificial structure, which was designed to control oxygen flow like a real eggshell. While this sounds impressive, critics argue it’s just a modified container, not a true artificial egg. The team added calcium to support growth, and even captured real-time images of the embryos developing inside—but some key parts of natural eggs, like waste removal systems, were missing. The company behind this project has bigger plans: reviving the extinct South Island giant moa, a bird with eggs 80 times larger than a chicken’s. Their goal is to eventually tweak modern birds’ genes to resemble ancient species. But scientists are skeptical. One evolutionary biologist points out that even if they create a moa-like bird, it wouldn’t truly be the same species. The effort might just produce a genetically engineered animal, not a true resurrection.Past research has used simpler versions of this idea—like transparent eggshells—to study bird development. These methods helped scientists understand how chicks grow, with insights that could apply to other animals, even humans. But this new approach takes it further by trying to mimic natural processes artificially. Still, experts wonder if the technology is ready for such an ambitious goal. Even if the moa project succeeds, another challenge remains: where would these birds live? The world has changed dramatically since the moa went extinct centuries ago. A bioethicist warns that without the right environment, any revived species could struggle to survive. Some scientists suggest focusing on saving endangered species first, where preserving genetic material might be more practical than trying to recreate the past.