The ‘return’ of an extinct wolf is not the answer to saving endangered species, experts warn

As the Trump administration slashes funding for health, energy and climate research, there’s one science the administration is promoting: de-extinction.

Earlier this month, a biotechnology company announced it had genetically engineered three gray wolf pups to have white hair, more muscular jaws and a larger build — characteristics of the dire wolf, a species that hasn’t roamed the Earth for several millennia.

Now, the Trump administration is citing the case of the dire wolf as it moves to reduce federal protections under the Endangered Species Act of 1973. On Wednesday, the U.S. Fish and Wildlife Service and National Oceanic and Atmospheric Administration announced a proposed rule to rescind the definition of “harm” under the act — which for decades has included actions like harassing, pursuing, hunting or killing endangered wildlife and plants, as well as habitat destruction.

This undated photo provided by Colossal Biosciences shows a young wolf that was genetically engineered with similarities to the extinct dire wolf. (Colossal Biosciences via AP) 

“The status quo is focused on regulation more than innovation. It’s time to fundamentally change how we think about species conservation,” said Interior Secretary Doug Burgum in an April 7 post on X, formerly Twitter. “The revival of the Dire Wolf heralds the advent of a thrilling new era of scientific wonder, showcasing how the concept of ‘de-extinction’ can serve as a bedrock for modern species conservation.”

But bioethicists and conservationists are expressing unease with the kind of scientific research being pioneered by Colossal Biosciences, a Dallas-based company on a mission to bring back extinct animals.

“Unfortunately, as clever as this science is … it’s can-do science and not should-do science,” said Lindsay Marshall, director of science in animal research at Humane World for Animals, formerly the Humane Society of the U.S.

The dire wolf also came up at an April 9 meeting of the U.S. House Committee on Natural Resources that considered amendments to a proposed law that would strip federal protections from western Great Lakes gray wolves — the latest in a decadeslong back-and-forth between conservationists, hunters and politicians that has shifted the species on and off the endangered list since its inclusion 50 years ago.

At the congressional meeting, Democratic Rep. Jared Huffman of California suggested an amendment to allow a federal judge to reconsider the removal of federal protections if population numbers begin to decline significantly again.

“Well, didn’t we just bring a wolf back that was here 10,000 years ago? I mean, if it really gets that bad, we can just bring woolly mammoths back,” responded Rep. Lauren Boebert of Colorado, a Republican and the bill’s sponsor.

“That’s a deeply unserious response to what should be a very serious issue,” Huffman replied.

Gray wolves that live in the Great Lakes and West Coast regions are one of 1,662 species currently protected under the Endangered Species Act. Hunting and trapping almost drove them to extinction in the lower 48 states by the mid-20th century.

Ken Angielczyk, curator of fossil mammals, compares a dire wolf skull, left, and a gray wolf skull in the collection at the Field Museum on April 16, 2025. (Eileen T. Meslar/Chicago Tribune)
Ken Angielczyk, curator of fossil mammals, compares a dire wolf skull, left, and a gray wolf skull in the collection at the Field Museum on April 16, 2025. (Eileen T. Meslar/Chicago Tribune) 

Naomi Louchouarn, program director of wildlife partnerships at Humane World for Animals and an expert on human-wildlife coexistence, had a gut reaction to the dire wolf news: “This is going to be a problem for gray wolves,” she recalls thinking. “It almost immediately undermined our ability to protect species.”

In a Wednesday statement to the Tribune, Colossal’s chief science officer, Beth Shapiro, said the company sees de-extinction as “one of many tools” that can speed up the battle against biodiversity loss, which humans are “not close to winning.”

“We don’t see this as an ‘either/or’ question, but rather as a ‘both and,’” she said. “We as a global community need to continue to invest in traditional approaches to conservation and habitat preservation, as well as in the protection of living endangered species.”

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