Brown Bear

Ursus arctos

LC Omnivore Forests, Mountains
70–780 kg
Weight
20–30 yrs
Lifespan
48 km/h
Top Speed
North America, Europe, Asia
Found In

Weighing 70–780 kg, the Brown Bear (Ursus arctos) ranks as one of the heaviest omnivore mammals (#2 of 33). Native to North America, Europe, Asia, it lives in forests, mountains habitats and is classified as Least Concern.

Documented in 2 U.S. National Parks

The Brown Bear has 2 field records across 2 parks in the National Park Service biodiversity database, listed as native in 2 records.

Park Nativeness Abundance T&E Status
Grand Teton National Park Native Common
Yosemite National Park Native NA

Size, Speed & Lifespan

Metric Brown Bear Omnivore Mammals Median Difference
Weight 425 kg 12 kg ↑ 3442%
Height 95 cm
Top Speed 48 km/h 35 km/h ↑ 37%
Avg Speed 48 km/h
Lifespan 25 yrs 17.5 yrs ↑ 43%
Weight (kg)425avg 12Speed (km/h)48avg 35Lifespan (yrs)25avg 17.5

Range Across 3 Regions

Habitat: Forests, Mountains
Found In: North America, Europe, Asia
Coloration: Brown

Behavior

Natural Predators

Social Structure

Recorded as Solitary.

Reproduction & Lifespan

Gestation Period: 180–250 days
Offspring per Birth: 1-4
Lifespan: 20–30 years

Population & Outlook

LC Listed as Least Concern on the IUCN Red List — one of 66 species in this database with the same status.

Weight Rank Among Least Concern Species

Ranked #6 of 66 by typical adult weight.

# Species Weight Status
4 Water Buffalo 300–1200 kg LC
5 Zebra 400–900 kg LC
6 Brown Bear 70–780 kg LC
7 Bottlenose Dolphin 150–650 kg LC
8 Wildebeest 200–390 kg LC
9 Harp Seal Up to 160 kg LC

Other Ursidae Species

The Ursidae family has 5 species in this database. Compare close taxonomic relatives:

Species Weight Diet Status
Giant Panda 70–125 kg Herbivore EN
Polar Bear Up to 700 kg Carnivore VU
Spectacled Bear 35–77 kg Omnivore VU
Sun Bear 27–80 kg Omnivore VU

Similar Omnivore mammals