Biologists at Yellowstone National Park set up camera traps to monitor cougars in 2014. You can imagine that these cameras saw a lot of different types of wildlife, but last month, a wolverine was seen running past the camera- the first time the park has captured one on video in more than a decade.
Wolverines are in many ways ghosts of the forests. They prefer cold climates, are solitary, and require large amounts of space to roam in search of prey. There as few as 300 left in the Lower 48, so the odds of seeing one are incredibly low.
Read more about the elusive wolverine at Earther.
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