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July 26, 2026Sources cited
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Science & Nature • Rodents

Hamster

Hamsters are small rodents in the subfamily Cricetinae, known for their cheek pouches, short tails, and burrowing behaviour.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Hamsters are small rodents in the subfamily Cricetinae, known for their cheek pouches, short tails, and burrowing behaviour. They are found naturally in parts of Europe, Asia, and the Middle East, and several species are commonly kept as pets. In Canada, hamsters are a common household pet and are featured in pet-care education.

Classification

Hamsters are rodents placed in the subfamily Cricetinae. Different sources vary on whether the group is treated within the family Cricetidae or within Muridae, reflecting differing taxonomic treatments.

Appearance and behaviour

Hamsters are small, stocky mammals with short tails, small ears, and large cheek pouches. They are known for burrowing, hoarding food, and having poor eyesight but strong smell and hearing.

Habitat and range

Wild hamsters occur in parts of Europe, Asia, and the Middle East. They are associated with dry habitats such as fields, steppes, grasslands, meadows, and farmland.

Diet and life cycle

Hamsters are omnivorous and often feed on seeds, grains, vegetables, and some animal matter. They can reproduce quickly, and litters vary in size; lifespan is generally around two to three years, though some live longer.

Key facts

  • Hamsters are rodents with internal cheek pouches used to carry and store food.
  • Hamsters live in burrows in the wild and use them for shelter and food storage.
  • They are omnivores, eating plant material and small animal matter.
  • They are typically active at night or during low-light periods such as dawn and dusk.
  • Several species, especially the Syrian and dwarf hamsters, are widely kept as pets.
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Canadian context

Hamsters are common household pets in Canada and are widely featured in Canadian pet-care advice and educational material. Canadian readers may also encounter hamster facts in school resources and pet-ownership guidance.[12]

Frequently asked questions

What is a hamster?
A hamster is a small rodent in the subfamily Cricetinae, known for cheek pouches, burrowing, and a short tail.
Are hamsters nocturnal?
Yes. Hamsters are commonly described as nocturnal, though some sources note they are crepuscular and most active at dawn and dusk.
What do hamsters eat?
Hamsters are omnivores. Their diet includes seeds, grains, vegetables, and some animal matter.
How many species of hamster are there?
Sources differ, giving totals from 16 to 25 species, depending on classification and source.
Which hamsters are commonly kept as pets?
Common pet hamsters include the Syrian hamster and several dwarf hamster species, with a small number of species widely domesticated.
Where do hamsters live in the wild?
Wild hamsters live in parts of Europe, Asia, and the Middle East, often in dry open habitats and burrows.

References

  1. RSPCAhttps://www.rspca.org.uk/adviceandwelfare/pets/rodents/hamsters
    Supports: Hamster species count, family classification, and pet-care context.
  2. Encyclopaedia Britannicahttps://www.britannica.com/animal/hamster
    Supports: General definition, taxonomy, species count, and physical characteristics.
  3. Britannica Kidshttps://kids.britannica.com/kids/article/hamster/400292
    Supports: Habitat, burrowing, cheek pouches, diet, activity pattern, and lifespan.
  4. IFAWhttps://www.ifaw.org/animals/wild-hamsters
    Supports: Wild habitat, taxonomy, number of genera, and conservation status for some species.
  5. National Geographichttps://www.nationalgeographic.com/animals/mammals/facts/hamster
    Supports: General natural-history facts including behaviour and species diversity.
  6. Canadian Livinghttps://www.canadianliving.com/life-and-relationships/culture-and-entertainment/article/10-fun-facts-about-hamsters
    Supports: Canadian context, pet popularity, and general hamster facts.