American black bear

From WikiMD's Wellness Encyclopedia

Black bear Quesnel Lake BC
Black bear Yellowstone NP 2008
Ursus americanus PO 03
Black Bear (20261425192)
"Cinnamon" Black Bear

American Black Bear (Ursus americanus) is a medium-sized bear native to North America. It is the continent's smallest and most widely distributed bear species. American black bears are omnivores, with their diets varying greatly depending on season and location. They typically live in forests but are also found in mountains and swamps.

Description[edit | edit source]

The American black bear has a body length of 5 to 6 feet and typically weighs between 90 and 300 kilograms (200-660 lbs), though some males have been known to exceed 350 kilograms (770 lbs). The species is sexually dimorphic, with males being larger than females. Their fur colors range from black to brown, cinnamon, and even white in rare cases, though black is the most common.

Habitat[edit | edit source]

American black bears are highly adaptable and can live in a variety of forested habitats across North America, from Canada to Mexico. They prefer dense forests for cover, but they also inhabit mountains and swamps. With the encroachment of human development into their habitats, black bears are increasingly found in areas of human activity, leading to more frequent human-bear interactions.

Behavior[edit | edit source]

Black bears are solitary animals, with the exception of mothers with cubs or occasional brief interactions during the mating season. They are primarily nocturnal, although they may be active during the day in areas where they feel secure. Their diet is omnivorous, consisting of plant material, insects, fish, and mammals. They are capable of rapid bursts of speed and are excellent climbers and swimmers.

Reproduction[edit | edit source]

Mating occurs in the late spring to early summer, with cubs born in January or February while the mother is hibernating. Litters can range from one to five cubs, but two is most common. Cubs are dependent on their mother for about 1.5 years.

Conservation Status[edit | edit source]

The American black bear is classified as Least Concern by the IUCN due to its wide distribution and large population. However, local populations can be threatened by habitat destruction and fragmentation, as well as by human-related mortality such as vehicle collisions and hunting.

Human Interactions[edit | edit source]

While generally shy and wary of humans, black bears can become accustomed to human presence if they associate humans with food sources, such as garbage or pet food. This can lead to conflicts, and in some cases, bears may become aggressive. Education on how to live in bear country, secure food sources, and manage waste is crucial to reducing human-bear conflicts.


WikiMD
Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD

Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD