Researching black bears in winter dens

MassWildlife biologists visit black bear dens every winter to collect valuable data.

Animal Facts: Black bear

Winter black bear research

Digging a Den - North American Bear Center

Researchers are having a bear of a time finding dens. They're

Black Bears - Bears (U.S. National Park Service)

Bear Hibernation: More Than a Winter's Nap

Visiting bear dens — a day in the life of Washington's bear

Sleeping Away the Winter

MassWildlife Monthly April 2022