Filmmaker Peter Jackson owns one of the largest private collections of bones of an extinct New Zealand bird called the moa. His fascination with the flightless ostrich-like bird has led to an unusual partnership with a biotech company known for its grand and controversial plans to bring back lost species.

On Tuesday, Colossal Biosciences announced an effort to genetically engineer living birds to resemble the extinct South Island giant moa – which once stood 12 feet (3.6 meters) tall – with $15 million in funding from Jackson and his partner Fran Walsh. The collaboration also includes the New Zealand-based Ngāi Tahu Research Centre.

"The movies are my day job, and the moa are my fun thing I do," said Jackson. "Every New Zealand schoolchild has a fascination with the moa."

Outside scientists say the idea of bringing back extinct species onto the modern landscape is likely impossible, although it may be feasible to tweak the genes of living animals to have similar physical traits. Scientists have mixed feelings on whether that will be helpful, and some worry that focusing on lost creatures could distract from protecting species that still exist.

The moa had roamed New Zealand for 4,000 years until they became extinct around 600 years ago, mainly because of overhunting. A large skeleton brought to England in the 19th century, now on display at the Yorkshire Museum, prompted international interest in the long-necked bird.

Unlike Colossal's work with dire wolves, the moa project is in very early stages. It started with a phone call about two years ago after Jackson heard about the company's efforts to "de-extinct" – or create genetically similar animals to – species like the woolly mammoth and the dire wolf.

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