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Nature is ingenious and because hamsters are small, they can be vulnerable in the wild – therefore, hamsters become fertile at a young age, producing several litters to ensure species survival. Hamster size is interlinked with their lifespan and how they age. Mammals age through a process of wear and tear and as time advances, the physical body proves less efficient. Compared to larger mammals, the biological mechanisms of diminutive creatures like hamsters aren’t as efficient. Here’s where nature’s ingenuity comes in – because wild hamsters often live in risky habitats, bodily processes are focused on procreation.

The hamster life cycle

Females will come into oestrus relatively early, usually between 6 and 8 weeks old, the males around 8 to 9 weeks. Litter sizes vary dependent on breed but, as a rule, produce 4 to 12 pups. In the wild, hamsters will breed seasonally but in captivity, it’s wise to keep sexes separate unless going for hamster world domination. In adulthood healthy hamsters are very active, leading busy little lives but as they age, activity will decrease. Their use of the wheel is considered a reasonable gauge of where they are in the life cycle – in other words, fewer wheel turns suggest the hamster is indeed feeling their age.

How long do hamsters live for – Some factors affecting hamster lifespan

Although the average lifespan is 2 to 2.5 years, there are several factors that may influence how long a hamster will live. Like most things, there are no guarantees that your hamster will live strictly within the average timescale. Some hamsters will live 1.5 years, while others might reach three. Here are some things to consider.

Species

Hamster species have varying lifespan averages – again, there are no hard and fast rules to apply, but they’re useful as baseline figures.

How long to Russian Dwarf Hamsters live?

Campbell’s Russian Dwarf Hamsters and Russian Winter White Dwarf Hamsters have similar lifespans.

Russian dwarf hamster lifespan – they live on average between 15 months and 2 years.

How long do Robo Hamsters live?

The Robo Dwarf hamster or Roborovski dwarf hamster is the smallest breed of hamster, yet have a very good life expectancy.

Roborovskis hamster lifespan – relatively long-lived at 3 to 3.5 years.

How long do Syrian Hamsters live?

Syrian hamster lifespan – between 2 and 3 years [males usually outlive females].

How long do Chinese Dwarf Hamsters live?

Although not officially a Dwarf hamster, Chinese Dwarf hamsters are often categorized with their smaller cousins as due to their size and appearance. Again they have a relatively long life expectancy.

Chinese dwarf hamster lifespan – on average 2 – 3 years.

How Long do Siberian Dwarf hamsters live?

Siberian dwarf hamster lifespan – from 18 months to 2 years.

What is the longest living hamster?

There is a lack of definitive information on the longest living hamsters, with anecdotes of a Syrian hamster living over 6 years! True or not, you can give your hamster the best chance to have a healthy life – whatever age it reaches – by providing it with optimal care. Before looking at diet, environment and other factors, it’s important to consider the genetic component to lifespan.

Hamster genetics

Unless you know the history of your hamster’s parentage – and perhaps, beyond that – it’s very difficult to know if there are genetic predispositions to health issues. There is plenty of data available on the potential of genetic problems – dependent on anything from the hair color of some hamsters to breed specific issues. Ultimately, existing genetic problems are beyond your control, so let’s talk about what you can do to help your hamster stay happy and healthy.

Diet and health
Apart from feeding your hamster a nutritional diet, limiting food access might help improve hamster lifespan. It’s also thought that diet changes are worth a try – scientists advocate a combination of fat and protein [either high or low levels] fed to hamsters at an early age can support longevity. Ensure your hamster has omega-3 rich foodstuffs for a healthy cardiovascular system – lean meat, eggs as well as fruit and vegetables are all suitable. Add oats or similar for fiber, giving your hamster the healthiest diet possible.

Environment and exercise

Hamsters thrive in clean, well-ventilated environments. Replenish bedding regularly, avoiding potential health hazards from accumulated dirt and droppings. Situate the hamster enclosure dependent on the needs of your hamster. For example, some breeds feel the cold easier than others, so avoid draughts and chilly rooms – similarly, direct sunlight might be harmful. Always try and tailor to your hamster’s specific needs.

Provide plenty of stimulus for exercise and natural behaviors – add tunnels and sufficient space to burrow and hide, as well as the iconic hamster wheel. Hamsters in safe enclosures that give adequate scope for exercise tend to be healthy, busy little creatures.