Last April, conservationists were alarmed to discover that the South Selkirk caribou herd, the only surviving population that ranges into the contiguous United States, had been reduced to just three individuals. In the following months, one of the caribou was killed by a cougar, and another disappeared from researchers’ radar due to a tracking collar malfunction. So, in a final-hour effort to keep the herd alive, conservationists have moved the last known South Selkirk caribou into a captive breeding pen, as David Moskovitz reports for Science.

Source: The Last Wild Caribou of the Lower 48 Has Been Placed in Captivity | Smart News | Smithsonian