This week, Colossal Biosciences made headlines by successfully hatching 26 chicks from innovative 3D-printed artificial eggshells. This achievement marks a significant move toward their ambitious goal of reviving extinct species, including the South Island giant moa and the dodo.
The artificial eggshells feature a semi-permeable silicone-based membrane that protects the embryo while allowing oxygen circulation. The process involves selecting viable eggs from hens and transferring their contents into the artificial structure within a day or two of laying. Colossal aims to use this method as a later-stage incubation vessel rather than for genetic alterations.
Colossal is considering the Nicobar pigeon as a potential surrogate for the dodo and is exploring the emu or tinamou for the moa project. Despite the innovative technology, the company faces criticism regarding its focus on de-extinction while numerous endangered species still need conservation efforts. Proponents argue that the techniques developed could also aid in preserving existing species.