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Eurasian brown bear

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The Eurasian brown bear, scientifically known as *Ursus arctos arctos*, is a widespread subspecies of the brown bear. It is found across much of the Eurasia landmass. Because it is so common, it is often called the European brown bear or the common bear. These large mammals play a significant role in the ecosystems where they live. They inhabit various environments, including grasslands, wetlands, and sparsely vegetated lands.

Eurasian Brown Bear
Eurasian Brown Bear

Physically, these bears are built for power and survival. Their fur is very dense and varies in color from yellowish-brown to dark brown. Some individuals even have red-brown or nearly black fur, and albinism has been recorded. A bear's head is typically round with small, rounded ears and a wide skull. Inside the mouth, they have 42 teeth, which include specialized predatory teeth. Their skeletal structure is powerful, and they possess large paws with long claws.

Eurasian brown bear (Ursus arctos arctos) female 3
Eurasian brown bear (Ursus arctos arctos) female 3

Weight and size for the Eurasian brown bear depend on the habitat and the time of year. A full-grown male typically weighs between 350 and 500 kg. Some males can reach a maximum weight of 650 kg and a length of nearly 3 meters. Females are generally smaller, weighing between 150 and 300 kg. The maximum weight recorded for a female is 450 kg. In their natural wild habitats, these bears generally have a lifespan of 20 to 30 years.

Eurasian brown bear (Ursus arctos arctos) cub 14 months
Eurasian brown bear (Ursus arctos arctos) cub 14 months

The diet of the Eurasian brown bear has changed significantly over many centuries. In antiquity, the species was largely carnivorous. Researchers estimate that about 80% of their diet consisted of animal matter. However, as their natural habitats began to diminish, their diet shifted. By the late Middle Ages, meat made up only 40% of what they ate. Today, meat accounts for only 10% to 15% of their total dietary intake.

Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear)
Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear)

Scientists use mitochondrial DNA (mtDNA) to study the complex history of these bears. The oldest known fossils of the species were found in Choukoutien, China, dating back about 500,000 years. Research shows that the brown bear species developed over 500,000 years ago. The Eurasian subspecies specifically separated about 850,000 years ago. This created two main branches: one in Western Europe and another in Russia, Eastern Europe, and Asia. During the Pleistocene ice age, bears were restricted to specific areas like Russia, Spain, and the Balkans.

Eurasian brown bear (Ursus arctos arctos) cub 14 months
Eurasian brown bear (Ursus arctos arctos) cub 14 months

Today, bear populations are spread across many different countries with varying numbers. The largest global population lives east of the Ural Mountains in the Siberian forests. In Europe, Romania holds a large population of around 13,000 bears. Other significant groups include 4,000 bears in Turkey and 2,500 in Slovakia. In Scandinavia, populations are growing slowly, with nearly 3,000 bears in Sweden and 2,000 in Finland. However, some areas have seen extinctions, such as Britain, Denmark, and Belgium.

Eurasian brown bear (Ursus arctos arctos) female 3
Eurasian brown bear (Ursus arctos arctos) female 3

The Eurasian brown bear also holds a deep place in human culture and history. In Ancient Rome, the strongest bears from Dalmatia and Caledonia were used in fighting arenas. Bears appear frequently in European fairy tales, such as those collected by the Brothers Grimm. Many human names are even derived from the bear, including Arthur, Björn, and Ursula. The bear is the national animal of Finland and is a symbol of Russian might. In Croatia, the bear is even featured on the 5 kuna coin.

Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear)
Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear)
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File:Eurasian brown bear (Ursus arctos arctos) female 3.jpg
Eurasian brown bear (Ursus arctos arctos)...
File:Eurasian brown bear (Ursus arctos arctos) cub 14 months.jpg
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File:Eurasian Brown Bear.jpg
Eurasian Brown Bear.jpg
File:Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear).jpg
Uc2.ark 13960 t8rb76g72-seq 369 (cropped Bear).jpg
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