Paul Little: Could the moa make a comeback in New Zealand? – NZ Herald

In a recent article published by the NZ Herald, writer Paul Little poses an intriguing question: Will moa walk New Zealand again? This thought-provoking query delves into the possibility of resurrecting the extinct moa species through genetic engineering and advanced scientific techniques. The idea of bringing back these giant flightless birds, which roamed the forests of New Zealand for millions of years before their extinction around 600 years ago, raises ethical, ecological, and practical considerations.

The moa were a diverse group of nine species, ranging in size from the turkey-sized little bush moa to the massive upland moa, which stood over 3 meters tall and weighed up to 250 kilograms. These herbivorous birds played a crucial role in the ecosystem, shaping the landscape and influencing plant diversity through their feeding habits. Their extinction, caused by overhunting and habitat destruction by early Maori settlers, had a significant impact on New Zealand’s biodiversity.

Advances in genetic technology, such as CRISPR-Cas9 gene editing, have opened up the possibility of de-extinction – the process of bringing back extinct species through genetic manipulation. Scientists have successfully inserted DNA from the extinct passenger pigeon into the genome of a living pigeon, raising hopes that similar techniques could be used to resurrect the moa. However, the ethical implications of playing „genetic resurrection“ and the potential consequences for existing ecosystems must be carefully considered.

One of the main arguments in favor of bringing back the moa is the opportunity to restore lost biodiversity and reestablish ecological balance in New Zealand’s forests. By reintroducing these giant herbivores, researchers believe they could help control invasive plant species, promote seed dispersal, and create new niches for other species to thrive. Additionally, the cultural significance of the moa to Maori and the potential for eco-tourism could provide economic benefits to local communities.

On the other hand, critics of de-extinction argue that it diverts resources and attention away from conserving existing species that are currently facing extinction due to human activities such as climate change, habitat destruction, and poaching. They also raise concerns about the unintended consequences of reintroducing a long-extinct species into a changed environment, where they may not have the same ecological role or interactions with other species as they did in the past.

In conclusion, the question of whether moa will walk New Zealand again is a complex and multifaceted issue that requires careful consideration of scientific, ethical, and ecological factors. While the idea of resurrecting extinct species may hold promise for restoring lost biodiversity and cultural heritage, it also raises important questions about our relationship with nature and the responsibilities we have towards preserving and protecting the world’s natural heritage. As we continue to explore the frontiers of genetic technology and conservation, it is essential to engage in open and transparent discussions about the potential benefits and risks of de-extinction projects like bringing back the moa.