Here's a detailed analysis of how a hamster's lifespan is influenced by species, care conditions, and other factors:

I. Species Differences
Dwarf Hamsters
Campbell's/Winter White Hamsters: Average lifespan 2–2.5 years (e.g., Purple W and Pudding hamsters).
Roborovski Hamsters: Slightly shorter lifespan at 1.5–2.5 years, due to their tiny size and high stress sensitivity.
Teddy Bear Hamsters
Syrian Hamsters (Golden Bears): Longest lifespan, typically 2.5–3.5 years; some individuals live up to 4 years.
Chinese Hamsters: Lifespan of 2–3 years, similar to Djungarian hamsters.
II. Key Influencing Factors
Living Environment
Space Requirements: Syrian hamsters need a cage ≥30×30×30cm; insufficient space shortens lifespan.
Temperature & Humidity: Ideal temp is 18–26°C with 40%–60% humidity. Extreme conditions trigger diseases.
Diet Management
Balanced Nutrition: Require a mix of commercial hamster food, fresh veggies/fruits, and clean water. Vitamin C deficiency causes scurvy.
Food Safety: Avoid spoiled or high-sugar/salt foods. Moldy grains contain aflatoxins.
Health Maintenance
Regular Cleaning: Dirty habitats breed bacteria, leading to skin or digestive issues.
Disease Prevention: Genetic defects (e.g., heart disease) or untreated injuries significantly reduce lifespan.
III. Tips to Extend Lifespan
Scientific Feeding: Use specialized hamster food and limit treats.
Environmental Optimization: Keep the cage dry, ventilated, and disinfected regularly.
Stress Reduction: Minimize disturbances; house solitary hamsters alone.
Note: Intact female hamsters may live slightly longer than males, but breeding reduces female lifespan.