Some wolves have a propensity to kill beavers more than others in Voyageurs National Park in Minnesota, suggesting this may be part of wolves’ unique personalities. Wildlife biologists are hesitant to apply human characteristics to …
Some people revere wolves. Some condemn them. Some credit them with restoring ecosystems in places like Yellowstone National Park. Others condemn them for causing conflict with livestock. But researchers recently found wolves (Canis lupus)—and other …
Snowshoe hares have been disappearing from parts of their southern range for some time now. In the Sandhill State Wildlife Area in Wisconsin, the small mammals were extirpated in the early 1990s. In subsequent years, …
Courtney Irvine had just spent 30 minutes digging up clumps of bison hair at a wolf kill site in Prince Alberta National Park in Saskatchewan when she heard the howls. On a cold day in …
After decades of absence in Montana, wolves began dispersing southward from Canada and ultimately recolonized the state in the 1980s. Translocations into Yellowstone National Park and Idaho in the mid-1990s also helped the Montana population …
Bobcats are the main predators of Pacific martens in northern California, according to research on the causes of death for the small weasels. Like spotted owls (Strix occidentalis), Pacific martens (Martes caurina) are forest dependent, …
When researchers began hearing reports about common ravens antagonizing sage-grouse at their lek sites in Nevada and California, they decided to investigate. Greater sage-grouse (Centrocercus urophasianus) are a species of high conservation concern, dealing with …
Human presence is changing how deer and a suite of predators interact in Pennsylvania state forests and the surrounding areas. Predators can affect the ways that white-tailed deer use different ecosystems on the landscape. Asia …
The Appalachian subspecies of the eastern spotted skunk is facing large declines, likely due to a combination of predation and canine distemper, a disease fatal to the carnivores. Concerns about the eastern spotted skunk (Spilogale …
Voles and lemmings are some of the most populous mammals in the Arctic, and their populations go through cycles that rise and fall. But why? That’s long been a mystery to scientists who study to …
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