More about American black bears
Not always black, and not quite hibernating
The name is only partly true. American black bears come in black, brown, cinnamon, blond, and, in a few coastal populations, white or bluish gray. Color often runs in families and can vary among cubs of the same litter. The other surprise is winter. Black bears do not hibernate the way ground squirrels do; they enter a lighter dormancy in which body temperature drops only a few degrees and the bear can wake if disturbed. In that state a bear may go months without eating, drinking, or relieving itself, living entirely on the fat it built up during a fall feeding frenzy that can add several pounds a day. Females give birth during this period and nurse tiny cubs in the den before spring. Bears in milder climates, or with steady food, may stay active most of the winter.
Why they matter
Black bears are listed as Least Concern by the IUCN, and their numbers in much of the eastern United States, including Maryland, have grown over recent decades as forests recovered. That is a conservation success worth talking about. It also means more people meet bears near their homes, and most problems come down to unsecured trash, bird feeders, and pet food. A bear that learns to associate people with food usually ends up in trouble. Seeing a bear up close and learning how it thinks is one of the best ways to understand why keeping food out of reach protects both people and bears. You can compare this species with its larger European cousin on our European brown bear page and see how northern predators live on our arctic wolf page.
Questions visitors ask
How big do black bears get?
Adult males commonly weigh two to four hundred pounds, with exceptional bears larger than that, and females are smaller. Weight swings a great deal through the year as bears fatten for winter.
Can black bears climb?
Yes, and well. Their short, curved claws are made for gripping bark, and cubs are sent up trees for safety. An adult can climb a tree faster than you might expect.
What do black bears eat?
Mostly plants: berries, nuts, acorns, grasses, and roots, along with insects, honey, and whatever meat they can find or scavenge. They are opportunists, which is why keeping human food secured matters so much in bear country.
How can I support the bears at the zoo?
Feeding, veterinary care, and enrichment for a large omnivore add up. You can support the animals directly, and you can read about how our keepers keep every species busy on the all animals page.