Where can I find
black bears in the wild?
American black
bears have a wide range stretching from Northern Mexico and Northern California
to Alaska and across to the Great Lakes. There are also isolated populations in
Florida along the Northern Gulf Coast. They are typically found in forest and
woodland areas.
How big is an adult
black bear?
The American Black
bear has an overall head and body length of 5-6 feet and an additional tail
length of 4.6 inches, and stands almost 3 feet at the shoulder. Males can weigh
240-575 pounds, and females 200-275 pounds. The coat color varies throughout
its range, and cubs from one litter can each be different colors. Compared to
the Grizzly, the American Black has a shorter more uniform coat, as well as
shorter claws and hind feet. It also has a less sloping backline than the
Grizzly.
Do black bears live
in groups?
Typically solitary,
but they will frequently congregate at large food sources, such as garbage
dumps, although they will still stay out of each other’s way. They have a
variety of vocalizations, such as a "woof" when startled, and cubs
who are lonely or frightened will utter shrill howls.
Females will give
birth every other year, but they sometimes wait more like every 3-4 years.
Mating season takes place from mid-June to July, and the actual pregnancy
typically lasts 220 days, however, there is delayed implantation. Embryonic
development only occurs in the last 10 weeks of pregnancy. Births are typically
in January and February, while the female is hibernating. Litters can vary from
1-5, but 2 or 3 is most common. The cubs are born weighing around 7.8-10.4
ounces each, and are blind and naked. They will be weaned around 6-8 months old
but will stay with their mothers for the next 1 1/2 - 2 1/2 years. Females
reach sexual maturity around 4-5 years old, and males a year later.
What do black bears
eat?
The majority of
their diet, about 75% is comprised of vegetable matter - especially fruits,
berries, nuts, acorns, grass and roots. In some areas, they will peel the bark
from a tree to ingest sapwood. They also eat insects, fish, rodents, carrion,
and occasionally large mammals. These bears are expert tree climbers and
swimmers. They require 11-18 pounds of food per day.
How long do black
bears live?
These bears have a
long lifespan and can live into their late 30’s both in the wild and under
human care. American black bears only predators are humans and other bears. The
oldest recorded wild black bear lived to be 39 years old in Minnesota.
Scientists are able to tell the age of black bears based on their teeth.
Similar to growth rings on trees, scientists can tell how old a bear is based
on the number of rings on one of their premolar teeth.
Do black bears
hibernate for the entire winter?
Hibernation can
begin as early as October and last until May. During this time, their body
temperature drops from 100° to 86-92°, the respiration slows and the metabolic
rate is depressed. In the southern regions, hibernation may be interrupted by
excursions outside during periods of relatively warm weather.
What are the
biggest threats facing black bears in the wild?
These bears have
been hunted intensively because of fear, to prevent predation on domestic
animals and crops, for sport and to obtain fur and meat. Typically, in North
America, an estimated 30,000 bears are hunted for sport each year. They are
also illegally hunted for their parts for use in the Asian medicine market.
As bears lose their
habitats, they start coming into closer contact with humans. American black
bears have an excellent sense of smell and can smell food from over a mile
away. They are also intelligent and will remember where they have found food in
the past and will keep returning to spots where they found food in the past.
This can lead to issues with bears relying on campgrounds, garbage dumps, or
even garbage cans left outside for food. Over time, they lose their fear of
humans and will often be killed to protect residents in the area.