Science or sideshow? Race to resurrect giant moa raises questions

The controversial effort to revive New Zealand’s extinct giant moa is moving from theory to technology, but scientists remain divided over whether extinction is possible, ethical or even necessary, writes Patrick Drennan.

The biggest bird ever South Island giant moaIt became extinct about 600 years ago. The first people to arrive in New Zealand around 1300 AD were known as Polynesian islanders. maoriswallowed nine species moa within 200 years of his arrival.

American company on July 8, 2025 Massive Biological Sciences announced a US$50 million (AU$69.7 million) project to revive the flightless bird through gene editing and surrogate hatching. There are Maoris among the supporters Ngai Tahu tribal and billionaire filmmaker peter jackson.

On May 19, 2026, Colossal announced that they had created an artificial egg with a 3D printed lattice structure to hatch moa.

The closest living genetic relative to the giant moa is the South American giant tinamou, although the moa is nine times larger. The moa’s natural egg is about four times the size of a giant tinamou egg; It is 240 mm (9.45 in) long compared to 60 mm (2.4 in) in length.

Colossal plans to fertilize the artificial egg by taking genes from moa bones and matching them with the giant tinamou genome. Artificial embryos are not new, but Colossal says its shell-free incubation platform can move embryos from early development to hatching without a biological eggshell or supplemental oxygen. The real issue will be scaling up the process.

Argument

Some academic critics believe that Colossal can only recreate a hybrid, not a true giant moa. While you are fascinated by technology, others are also included some local Maoriquestion the ethics of reintroducing a creature into a general ecosystem that no longer exists.

New Zealand, on the other hand, still has rainforests that contain plants that moa consume, such as fern spores, flax, tree daisies, and southern beech.

huge spokesperson Emily Lowe Mailaender He said preliminary work will be done in Dallas, Texas, but as the project progresses, the incubation process will take place in New Zealand. He is confident that the resulting bird, while not identical, will be as close as possible to the original moa.

But Professor Philip Seddon, from the University of Otago told me:

‘The creation of the artificial egg is a solution in search of a problem. ‘There is no current means of genetic engineering that can truly restore a lost species, especially one that has been deprived of its ecological and evolutionary context for hundreds of years.’

Many scientists are concerned that the findings will not be published in a peer-reviewed scientific journal.

However, geneticist Professor Michael KnappAlso from the University of Otago, declared:

“Innovation is real, progress is real, and it comes with money, otherwise I’m pretty sure it wouldn’t be available for conservation research.”

Where will the giant moa live?

New Zealand has many large bird sanctuaries with predator-proof fencing. They protect some of the world’s rarest birds. kiwi, takahēAnd kakariki – a red-crowned parakeet. In the wild, introduced pests such as opossums, rats, stoats, and feral cats prey on these birds and their eggs or eat the plants and seeds these creatures need to survive. Existing deeply dug shelter fences are unlikely to contain a giant moa.

Colossal claims its artificial egg membrane is groundbreaking and could be used for many living birds at risk of extinction. The limited gene pool of these rare birds poses a problem for modern conservationists. This technology could be very useful for low-breeding species. kakapo – the largest parrot in the world.

However, Professor Seddon suggests that preventing extinction may be a better application of de-extinction science than trying to recreate long-lost species.

One television interview, Paul Scofield An official from the Canterbury Museum, one of the partners of the Colossal project, said that the giant moa was kept in a warehouse. Jurassic ParkThe kind of enclosure that people would pay to view. It doesn’t seem to have much to do with science or conservation, but it certainly sparks the imagination.