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  3. Yellow-bellied Marmot

One of the 8 marmots on WAnimals

Yellow-bellied Marmot (Marmota flaviventris)

Mammals · Rodentia · Sciuridae

Yellow-bellied Marmot

Marmota flaviventris

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

It spends roughly 80% of its life underground in burrows, hibernating for as much as 8 months a year, during which it can lose up to 50% of its body weight.

Weight

1.6 kg – 5.2 kg

Size

47 cm – 70 cm

Life expectancy

15 years

Diet

Herbivore

Feeds mainly on plants.

Activity

Diurnal

Active mainly during the day.

Social structure

Colony

Lives in large concentrations, often for breeding reasons.

Mountain
2countries9parks22same family

AI-generated images: illustrations, not photographs.

Fun facts

  • That hibernation is the species' main cause of death.
  • It eats grasses, insects and the occasional bird's egg.
  • It lives on rocky mountain meadows of the western United States and Canada.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (mammal)
Habitat and environment
Rocky mountain meadows of the western United States and Canada
Birth weight
33.8 g and 111 mm long at birth
Size at birth
33.8 g at birth
Sexual maturity
2 years
Gestation / incubation
~30 days
Litter / clutch size
3 to 8 young per litter (average 4.3)
Life expectancy in captivity
Documented record of up to 21.2 years

Sources consulted: Animal Diversity Web · AnAge (genomics.senescence.info) · Wikipedia (Yellow-bellied marmot) · BioKIDS · Journal of Zoology (32-year demography study) · NPS Jewel Cave

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Yellow-bellied Marmot — same habitat, park, country, tags or family.

Same taxonomic family
Same taxonomic family
Same taxonomic family
Shares a park
Shares a park
Shares a park

Keep exploring

Based on what we already know about yellow-bellied marmot.

Share an experience, a fun fact or a tip for seeing the yellow-bellied marmot.
See full glossary
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See its range on the interactive map→
Yellowstone National ParkUnited States
YosemiteUnited States
Grand TetonUnited States
Sequoia National ParkUnited States
Great BasinUnited States
Capitol ReefUnited States
Bryce CanyonUnited States
Lassen VolcanicUnited States
Black Canyon of the GunnisonUnited States
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Sciurus aureogaster

Least Concern

Olympic Marmot

Marmota olympus

Hoary MarmotLeast Concern

Hoary Marmot

Marmota caligata

Least Concern

American Pika

Ochotona princeps

Least Concern

Mountain Goat

Oreamnos americanus

Bighorn SheepLeast Concern

Bighorn Sheep

Ovis canadensis

CountriesUnited States
ParksYellowstone National ParkUnited States
TagsHerbivore
Herbivore
Diurnal
Colonial
Mountain
Mammal
United States
Canada