A species of huge, flightless bird that once inhabited New Zealand disappeared around 600 years ago, shortly after human settlers first arrived on the country’s two main islands. Now, a Texas-based biotech company says it has a plan to bring it back.

“Some of those iconic species that feature in our tribal mythology, our storytelling, are very near and dear to us,” says Ngāi Tahu archaeologist Kyle Davis, who is working on the moa de-extinction project. “Participation in scientific research, species management, and conservation has been a large part of our activities.”

Colossal Biosciences, known for its de-extinction efforts with woolly mammoths and dodos, is now targeting the restoration of New Zealand’s giant moa. This move reignites debates within the scientific community about the feasibility and ethics of “de-extinction.”