What kind of animal is a brown bear? Explanation of characteristics, ecology, and habitat


What kind of animal is the brown bear that lives in America, Europe, Hokkaido, etc.? We will introduce and explain its characteristics, ecology, and habitat. Brown bears are widely distributed in the Northern Hemisphere and live in a variety of natural environments. However, because they are larger than humans, they may attack humans, so you need to be careful.

What is a brown bear? About basic status

Brown bears are mammals that belong to the bear family. I feel like it’s a brown fox, a scarlet bear, or a hikuma. In English, it is also called grizzly bear. The scientific name is Ursus arctos. They are 2-3 meters long and weigh 100-300 kg, making them larger carnivores than humans. The information is listed below.

English(英名)Brown bear、Grizzly bear
scientific name(学名)Ursus arctos
classification(分類)Mammalia、 Carnivora、 Ursidae、Ursus

About classification

There are several subspecies regarding classification, so check them out when you have time. Some research is also being done.

名前NameScientific Name
ハイイログマ(灰色熊)Grizzly bearUrsus arctos horribilis
コディアックヒグマKodiak bearUrsus arctos middendorffi
エゾヒグマ(蝦夷羆)Ezo brown bearUrsus arctos yesoensis
ヒマラヤヒグマHimalayan brown bearUrsus arctos isabellinus
メキシコハイイログマMexican grizzlyUrsus arctos nelsoni
カリフォルニアハイイログマCalifornia golden bearUrsus arctos californicus
カムチャッカオオヒグマBergman’s BearUrsus arctos piscator 
マルシカヒグマMarsican brown bearUrsus arctos arctos

Ursus arctos horribilis

Grizzly bears are also known as American brown bears. The largest specimens are said to weigh more than 450 kilograms, and are so large that they can chase prey at speeds of 48 km/h, which is quite astonishing. The subspecies as a whole is classified as “endangered” in the United States and “of special concern” in Canada.

Ursus arctos middendorffi

The Kodiak brown bear is also known as the Alaskan brown bear. Females weigh between 180 and 315 kg, and males between 270 and 635 kg. It is an extremely large bear, reaching a height of 3 meters when the male stands on his hind legs. The population in 2005 was 3,526, and the estimated population is increasing.

Ursus arctos yesoensis

Ezo brown bears are distributed in the forests and fields of Hokkaido. It is large, reaching 2-3 meters in length. They are good at being independent and are active day and night. Ezo brown bears are being exterminated and are now designated as an endangered species.

Ursus arctos isabellinus

The Himalayan brown bear, also known as the Himalayan red bear or Isabeline bear, is a subspecies of brown bear that lives in the western Himalayas. It is the largest mammal in this region. Males are 1.5 to 2.2 meters long and brown in color. It is also listed in the Washington Convention.

Ursus arctos nelsoni

The Mexican grizzly bear is a subspecies that lived from Mexico to the United States, but is now confirmed to be extinct. The Mexican grizzly bear was thoroughly exterminated as a pest.

Ursus arctos californicus

The California grizzly bear is a bear that lived in California. The body color was brown, the body length ranged from 1.8m to 3m, and the weight ranged from 130kg to 680kg. However, it became extinct due to hunting for its fur.

Ursus arctos piscator 

The Kamchatka brown bear lived on the Kamchatka Peninsula in Russia. However, in 1920, complete extinction was confirmed.

Ursus arctos arctos

The Marsican brown bear is also known as the Apennine brown bear, or in Italian, Orso Bruno Marsicano. It is a European brown bear and is protected in Italy’s Abruzzo National Park, Lazio Emolise. This bear is designated as an endangered species.

Where is its habitat?

Brown bears are mainly found in the Americas, but they are also distributed in Japan and Europe.

feature is? What kind of creature is it?

Brown bears have a sturdy and sturdy physique, and are characterized by being larger than humans. There are differences in the color of the body hair depending on the population. They also tend to be solitary, preferring to live in forest areas.

What is your personality like?

Brown bears usually live away from people. Most of them are very wary and tend to avoid them, but if they meet someone and provoke them, they become excited and often attack.

What is the ecology like?

Brown bears are omnivorous. There are many foods that can be eaten, including fruits, nuts, insects, and fish. During the winter, they hibernate in burrows. Brown bears reach sexual maturity around the age of 3 to 5 and are capable of breeding. The breeding season is from May to July. The lifespan is about 20-30 years.

Are there any natural enemies?

Brown bears are the largest bears on land and have no rivals. If I had to guess, it would be human. In the past, there was a history of people shooting at brown bears.

Are brown bears an endangered species?

Statistics show that the European brown bear, which is a subspecies of the brown bear, has decreased dramatically and is now an endangered species. Among them, the Marsica brown bear that we introduced is on the verge of extinction and can only be seen in a few areas of Italy. They also cause damage to areas where people live, so they have been exterminated as wild animals in the past. There are also fewer industries and volunteers to support.

Can brown bears be bred?

Unless you are a very skilled person, you cannot keep them. They are very dangerous as they may attack and eat people. If you come across one in nature, the best way to deal with it is to avoid irritating it. If you want to see it, we recommend that you go sightseeing at a zoo or other facility and there will be guidance at the facility.


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