Dallas, TX – July 28th 2026
In a development that has stunned the scientific community and captured the public imagination, Colossal Biosciences has announced the successful creation and placement of a reconstructed dinosaur embryo into a specially prepared egg. The company will now begin the incubation phase, with hatching expected in the coming months if development proceeds as planned.The breakthrough was first revealed in a post by Matt James, Chief Animal Officer at Colossal Labs (@MattJamesCAO), who wrote:
“History just cracked open. We’ve successfully copied and reconstructed a viable dinosaur embryo using ancestral genome reconstruction, CRISPR multiplex editing, and avian surrogate pathways—and carefully placed it into a prepared egg. It’s a feathered Velociraptor mongoliensis-inspired predator: compact, lightning-fast, highly intelligent, with sickle claws and striking plumage. Not a lumbering giant—something far cooler and more dynamic. Incubation starts now. The wait for the first hatch begins. Extinction isn’t forever.”
Colossal, founded in 2021 by entrepreneur Ben Lamm and geneticist George Church, has built its reputation on de-extinction and advanced genetic engineering. The company launched with the woolly mammoth project, later expanding to the thylacine (Tasmanian tiger), dodo, and, in 2025, the successful birth of the first claimed de-extinct animals—dire wolf pups created through extensive gene edits on gray wolf cells, somatic cell nuclear transfer, and surrogate pregnancies.
Along the way it has developed tools including multiplex CRISPR editing, artificial reproductive technologies, avian primordial germ cell work for birds such as the dodo, and high-success-rate cloning platforms after acquiring specialized capabilities. These efforts have focused on relatively recent extinctions where usable ancient DNA or close living relatives exist, while advancing broader conservation applications.
Dinosaur DNA presents a far greater challenge. Soft-tissue genetic material does not survive the roughly 66 million years since the end-Cretaceous extinction; any recoverable fragments are too degraded for direct cloning of the kind depicted in fiction. Colossal’s team instead combined high-quality genomes from modern birds (the living descendants of theropod dinosaurs), comparative genomics, AI-assisted ancestral sequence reconstruction, and targeted edits informed by fossil morphology and protein studies.
The resulting embryo is engineered to produce a small, highly active, feathered dromaeosaur modeled closely on Velociraptor mongoliensis—emphasizing the real animal’s roughly turkey-sized build, agility, pack-hunting intelligence, retractable sickle claw, and extensive plumage rather than the oversized movie version.
THE EGG itself is a hybrid construct: a carefully engineered shell and membrane system based on large modern avian eggs, reinforced with materials and nutrient gradients calibrated for the developmental needs of the reconstructed embryo. After the nuclear transfer and early cleavage stages confirmed viability under laboratory conditions, the embryo was transferred into the prepared egg under sterile protocols.
Incubation is now underway in a controlled facility with continuous monitoring of temperature, humidity, gas exchange, and developmental markers. Expected incubation time is estimated in the range of several weeks to a few months, depending on metabolic rate and growth trajectory; the first signs of successful progression will be closely tracked.
Company leadership has framed the work as both a scientific leap and a demonstration of how far genome engineering and reproductive technologies have advanced since Colossal’s early mammoth and avian programs. While emphasizing that this is not a pure clone of any single fossil specimen and that many biological unknowns remain, they describe the achievement as proof that functional reconstruction of deep-time traits is moving from theoretical to experimental reality.
The announcement has already sparked intense discussion among paleontologists, geneticists, ethicists, and the public. Colossal has indicated that further technical details, imaging of the embryo, and incubation progress updates will be shared in controlled stages.
For now, the focus remains on careful monitoring as the egg enters its critical developmental window.This is an extraordinary claim in a field already known for ambitious timelines. If the embryo develops and hatches successfully, it would represent one of the most striking demonstrations yet of the power of modern genomic tools to reach far deeper into evolutionary history than previously thought practical.
