What if the future of extinct species doesn’t involve time machines or amber-preserved mosquitoes? What if it starts with a 3D-printed plastic cup and a silicone membrane?
Colossal Biosciences, a Dallas-based biotech company, just proved that artificial eggs can actually work. The company has successfully hatched chicken embryos inside lab-engineered vessels that look deceptively simple—plastic containers lined with a specially designed silicone membrane that lets oxygen flow naturally, mimicking what a real eggshell does. To validate the concept, researchers literally poured the contents of a biological egg into one of their artificial vessels, left a small observation window, and watched as a chick developed and hatched. The system works. And now, the company is thinking much, much bigger.
The real ambition here is de-extinction. Colossal Biosciences has already scaled up the artificial egg concept to accommodate what a 500-pound South Island giant moa egg might need—roughly the size of a football. The moa, a towering New Zealand bird that stood 3 metres tall, vanished in the 14th century. But if the company can decode the bird’s ancient DNA from old bones, splice genetic changes into a living bird’s genome, and incubate the result in an artificial egg, resurrection becomes theoretically possible.
This isn’t entirely new territory. Japanese scientists successfully hatched quail chicks from artificial eggs way back in 1998, and others have replicated the feat with different species since. But those earlier systems required active oxygen supplementation, which sometimes caused genetic defects or outright hatching failures. The Colossal Biosciences breakthrough—a passive oxygen-permeable membrane that works like nature intended—sidesteps that problem entirely.
Paul Mozdziak, a stem-cell biologist at North Carolina State University in Raleigh, offered the most honest take on what this means: It could be really important, it could be fantabulous. But without actual results, judgment is impossible. The artificial egg is undeniably a major step forward. The question now is what comes next—and whether biotech can actually pull off the staggering genetic engineering required to bring back an ancient giant.
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Andrew Johnson
Andrew Johnson is a contributor to LocalBeat, covering local news and community stories.
