Colossal Biosciences said it hatched 26 live chicks from fully artificial, 3D-printed eggs this month [1].

This development represents a critical hurdle in de-extinction science. By creating a functional artificial shell, researchers may be able to bypass the need for surrogate species to host embryos of extinct birds.

The Texas-based company utilized a honeycomb structure for the artificial eggs [2]. This design was intended to mimic the natural properties of an avian shell, allowing the embryo to develop and eventually break through the barrier to hatch [2]. According to the company, the process resulted in 26 live chicks [1].

Colossal Biosciences said the technology is intended to advance efforts to bring back bygone species. The company specifically identified the South Island Giant Moa as a potential candidate for future resurrection [3, 4]. The ability to manufacture a customized shell allows scientists to tailor the environment to the specific needs of a species that no longer exists in the wild [4].

While the company reports success, the announcement has met with a mixture of excitement and skepticism from the broader scientific community [5]. Some experts question the scalability of the 3D-printing process and whether the artificial environment can fully support the complex biological needs of a developing embryo over a longer period.

The company said the multidisciplinary approach, combining materials science with genetics, is essential for these breakthroughs [2]. By removing the reliance on existing bird species to act as foster parents, the company aims to accelerate the timeline for de-extinction projects [3].

“Colossal Biosciences announced it hatched 26 live chicks from fully artificial, 3D-printed eggs.”

The successful hatching of chicks from synthetic shells suggests that the physical barrier of the egg is no longer a primary obstacle in avian de-extinction. If this technology scales, it reduces the biological constraints of finding a compatible living surrogate, moving the challenge from the physical environment of the egg to the genetic reconstruction of the species itself.