🐀Virginia opossum
北美負鼠（Didelphis virginiana）是棲息在北美洲格蘭德河以北唯一的有袋類動物。牠是獨行及夜間活動的動物，約有家貓的大小。牠們分佈在中美洲及北美洲，由巴拿馬至加拿大都有牠們的蹤跡，但似乎仍在向北擴展。牠們的祖先在南美洲開始演化，並在300萬年前藉南北美洲生物大遷徙而進入北美洲。
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2016.
- Body mass
- 1.41 kg
- Body length
- 0.4 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 7 years
Everything we know about the Virginia opossum
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass1.41 kgCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 3 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length0.4 mCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Brain mass7.32 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan7 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 6.6 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length2.04 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity226 daysCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation12 daysCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 12 daysAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Litter sizeabout 7COMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 15AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Trophic levelOmnivoreCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Activity cycleNocturnalCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Home range0.58 km²COMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Population density6.15 per km²COMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l1.4 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
average = a mean across sexes or species in a group.
Not recorded for Virginia opossum yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderDidelphimorphia
- ›familyDidelphidae
- ›genusDidelphis
- ›speciesDidelphis virginiana
- classMammals · Mammalia
- familyDidelphidae
- subfamilyDidelphinae
- genusDidelphis
All 13 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- orderDidelphimorphia
- familyDidelphidae
- subfamilyDidelphinae
- genusDidelphis
More about the Virginia opossum
镜头下的动物
站内动物的实拍影像——捕猎、打斗，还有各自过日子的样子。
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