Wolf intended for translocation to Isle Royale NP dies after being sedated; officials investigating

A female wolf captured with intent to be released at Isle Royale National Park died before it could be set free. Officials didn't identify the cause of death, but said they were altering field procedures for handling wolves captured for the park's wolf recovery program.

In a brief release Friday evening, park staff said the animal was captured on Thursday, given a quick exam in the field by wildlife biologists, and "deemed fit for transportation." While the wolf was sedated and taken to a holding facility for a more detailed exam, her condition deteriorated and she died. The wolf was transported to the University of Minnesota Veterinary Diagnostic Lab for necropsy and diagnostic evaluation Friday.

https://www.nationalparkstraveler.org/2018/09/wolf-captured-relocation-isle-royale-national-park-dies