🐻Bears
Björnar (Ursidae) är en familj av större rovdjur och som idag omfattar åtta arter som förekommer över stora delar av norra och södra halvklotet. Björnar lever i Eurasien, Nord- och Sydamerika och de fanns tidigare även i norra Afrika. Arterna är främst allätare med undantag av jättepandan som huvudsakligen lever av bambuskott och isbjörnen som har kött som huvudföda.
Text: Wikipedia, CC BY-SA 4.0.
The Red List assesses individual species. Each animal in this group has its own status.
- Body mass
- 152 kg
- Body length
- 1.75 m
- Shoulder height
- 0.92 m
- Top speed
- 43 km/h
- Bite force
- 1,436 N
- Maximum lifespan
- 40 years
Everything we know about Bears
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass152 kgaverage46–372 kg · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Body length1.75 maverage1.31–2.29 m · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Shoulder height0.92 maverage0.68–1.45 m · range across the groupaggregated across membersDetails ↓Hide ↑
range across 7 member species
Top speed43 km/haverage39–47 km/h · range across the groupaggregated across membersDetails ↓Hide ↑
range across 2 member species
Bite force1,436 Naverage751–2,121 N · range across the groupaggregated across membersDetails ↓Hide ↑
range across 2 member species
Brain mass333 gaverage243–476 g · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Maximum lifespan40 yearsaverage34–50 years · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Generation length12 yearsaverage9.99–16 years · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Age at maturity4.5 yearsaverage1,015–2,413 days · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Gestation151 daysaverage91–226 days · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Litter sizeabout 2average1.1–2.46 · range across the groupaggregated across membersDetails ↓Hide ↑
range across 8 member species
Home range12,937 km²average0.7–77,270 km² · range across the groupaggregated across membersDetails ↓Hide ↑
range across 6 member species
Population density0.32 per km²average0.01–1.21 per km² · range across the groupaggregated across membersDetails ↓Hide ↑
range across 6 member species
average = a mean across sexes or species in a group.
Family tree
- classMammals · Mammalia
- superorderLaurasiatheria
- orderCarnivorans · Carnivora
- suborderCaniformia
All 12 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderCarnivorans · Carnivora
- suborderCaniformia
More about Bears
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