This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: On a summer day in Michigan, a tiny Poweshiek skipperling butterfly—smaller than a quarter—takes flight over a restored prairie. To most people, it looks like an ordinary butterfly.
But to the researchers watching in the wings, this moment represents something extraordinary. Just a few years ago, scientists feared the Poweshiek skipperling was disappearing forever. Now, researchers at Michigan State University and their conservation partners have helped pull one of the world's rarest butterflies back from the brink of extinction.
Working alongside many partners, including John Ball Zoo, Minnesota Zoo, the U.S. Fish and Wildlife Service and the Michigan Department of Natural Resources, the team transformed one of North America's most vulnerable butterflies into a growing conservation success. "We were actually able to save that species from extinction," said David Pavlik, research assistant at MSU's W.K.
Kellogg Biological Station and John Ball Zoo, who has spent years helping lead the recovery effort. "We released 102 butterflies in 2022 and more than 1,300 butterflies in 2025." Early in the recovery effort, the goal wasn't to create new populations—it was simply to keep the butterfly from disappearing from the last few populations left in Michigan. Some butterflies are being used to establish new populations, while others are strengthening the few populations that remain.
Those releases are already helping wild populations begin to thrive. Researchers aren't releasing butterflies to prevent extinction anymore—they're releasing them to expand a recovering population. At one point during the recovery effort, researchers were caring for more Poweshiek skipperlings in captivity than existed in the wild anywhere on Earth.
Once found throughout the Midwest—from Iowa and the Dakotas to Michigan and southern Canada—the Poweshiek skipperling began disappearing with startling speed in the early 2000s. By 2022, researchers documented only nine Poweshiek skipperlings in the entire United States. The success of the program has expanded beyond the Poweshiek skipperling.
Extract — continue reading at the source.
