Pennsylvania mountain lion confirmations explain why sightings occur despite official extinction records showing native cougars are gone.

River otters in Pennsylvania streams have made a remarkable comeback through decades of wildlife conservation and reintroduction efforts.

Pennsylvania fishers, elusive forest predators, disappeared due to trapping and logging, but conservation efforts successfully returned them to state woodlands.

Pennsylvania bobcat range, core habitats in northern and southwestern counties, and tracking signs for hunters and trappers.

Coyotes migrated eastward into Pennsylvania after wolves and cougars were eliminated, filling a vacant ecological niche in the forests.

Pennsylvania coyote population numbers remain a mystery, but indirect indicators and harvest data show robust statewide distribution.

Woodchuck populations on Pennsylvania farms create serious agricultural damage and provide practical population management strategies for landowners.

Pennsylvania squirrel harvest numbers reveal population health, food availability, and regional trends to help hunters plan trips.

Pennsylvania gray squirrels and fox squirrels have distinct physical traits, habitats, and diets that hunters and wildlife watchers can easily identify.

Appalachian cottontails in Pennsylvania require high-elevation evergreen thickets, distinct physical traits, and specific management approaches for hunters.