Analysis of Hamster Personality Traits
Classified and explained by different dimensions:

I. Personality Differences by Breed
Campbell's Dwarf Hamsters (Including Sapphire & Silver Fox Varieties)
Their personalities are as steady as "veteran officials" — they move slowly but have high vigilance.
Sapphire variants are relatively unresponsive; you need to wait for their "slightly delayed" reactions during interactions.
Silver Fox varieties retain wild genes, and some individuals may exhibit pseudo-hibernation.
Winter White Dwarf Hamsters (Pudding Hamsters)
They combine laziness with nervousness, sometimes suddenly being affectionate and then suddenly hiding.
Sensitive to sounds, they emit high-frequency squeals (up to 40kHz) when frightened.
Genetic defects related to their fur color make them prone to diabetes, so sugar intake must be controlled.
Roborovski Dwarf Hamsters
The smallest in size but the most stubborn in temperament; they will "play dead" when caught.
They have a strong sense of territory and will make grinding teeth sounds to warn other hamsters when they meet.
Skilled at escaping from cages, so you need to check for gaps in the cage (they can squeeze through gaps as small as 1cm).
II. Behavioral Pattern Characteristics
Social Behavior
They mark their territory with scent glands (Syrian hamsters rub their chins against objects to do this).
They can recognize their owner's footsteps, but their memory only lasts 3-5 days.
When threatened, they make a "puffing" sound (a defensive sound similar to farting).
Activity Traits
Their nighttime activity accounts for 70% of the whole day, with the peak period of running wheel use being 22:00-2:00.
They use a "whisker scanning" method when exploring, with their whiskers twitching at a frequency of 12 times per second.
Storing food can lead to "cheek pouch syndrome," where excessive hoarding causes inflammation.
III. Interaction Precautions
Trust Building: Use sunflower seeds to guide them in the early stages and avoid grabbing them directly.
Environmental Requirements: Provide tunnels (with a length of ≥30cm) to satisfy their natural instinct to burrow.
Stress Response: Sudden exposure to strong light can cause temporary loss of sense of direction.
Special Note
Hamsters will respond to threats by "playing dead" (feigning death); in such cases, keep the environment quiet. Elderly hamsters (over 2 years old) may develop cognitive impairment, so the facilities inside the cage need to be simplified.
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