| Species | Small Mammal |
|---|---|
| Origin | Mongolia/China |
| Size Category | Tiny |
| Scientific Name | Phodopus roborovskii |
| Category | Rodent |
| Original Purpose | Companion |
| Husbandry Difficulty | Intermediate |
| Social Needs | Medium |
| Weight Range | 0.02–0.025 kg |
|---|---|
| Lifespan | 2–4 years |
| Juvenile Stage Ends | 2 months |
| Senior Age Threshold | 3 years |
| Exercise Needs | Very High - most active hamster species; runs up to 100 miles per night on wheel |
|---|---|
| Grooming | Minimal; sand bath essential for coat health |
| Annual Exam Focus | Weight (very small - precise scale needed), respiratory, dental |
| Routine Care | Deep sand substrate area; fresh water; minimal handling (observation pet) |
| Condition | Onset Stage | Risk | Hereditary | Screening |
|---|---|---|---|---|
| Respiratory Infections | adult | medium | No | N/A |
| Broken Bones (due to small size) | adult | medium | No | N/A |
| Skin Conditions | adult | low | No | N/A |
| Dental Malocclusion | adult | low | Yes | Recommended |
| Risk Level | Low |
|---|---|
| Ideal BCS | 3/9 |
| Visual Cues | Naturally lean and active; obesity rare due to extreme activity levels |
| Daily Activity | 45 minutes |
| Caloric Notes | Base: 6-8 kcal/day; high metabolism requires consistent food access |
| Litter Size | 3–6 |
|---|---|
| Dystocia Risk | Low |
| CHIC Required Tests | N/A |
| Recommended DNA Tests | N/A |
| Neonatal Weight | 1–1.5 g |
|---|---|
| Growth Notes | Slowest-maturing dwarf hamster; eyes open 14 days; weaning 21-28 days; mature 4-5 months |
| Vaccine/Health Schedule | No standard vaccines |
| Temperature | 20-24°C (68-75°F) |
|---|---|
| Humidity | 30-50% (desert-adapted) |
| UVB Requirement | Not required |
| Diet | Small seeds, millet, occasional insects; very small food portions due to tiny size |
| Common Issues | Respiratory infections, fractures from falls, dental issues |
| Anxiety Proneness | High |
|---|---|
| Top Triggers | Human handling, open spaces without cover, sudden movements, isolation from group |
| Separation Anxiety Risk | Medium |
| Calming Interventions | Group housing, deep sand substrate, many hideouts, minimal direct handling |
| Enrichment Needs | Large wheel (min 20cm), sand bath area, multi-level habitat, foraging scatter feeding |
| Cognitive Dysfunction Risk | Low |
| Sociability Score | 4/10 |
| Locomotion | Extremely fast running, sand bathing, leaping, burrowing in sand substrate |
|---|---|
| Social | Can live in same-sex pairs/groups; mutual grooming; communal sleeping |
| Comfort | Sand bathing (primary), self-grooming, communal nesting |
| Stress/Displacement | Extreme speed/fleeing, hiding, reduced activity, separation from group |
| Breed-Specific | Fastest hamster species; sand-bathing specialist; communal living capability; extremely difficult to handle |
| Types | Ultrasonic social calls, rare audible squeaks only in extreme distress |
|---|---|
| Frequency Range | 20,000-60,000 Hz (primarily ultrasonic) |
| Tendency | Very Low |
| Primary Modality | Primarily visual (speed/movement) and olfactory; ultrasonic for social bonding |
| Tail/Body Signals | Minimal tail - no signaling function |
| Top Problems | Extreme flightiness, difficulty handling, group aggression if space limited |
|---|---|
| Medical Etiology | Respiratory distress causing lethargy; fractures from escape attempts |
| Fear/Anxiety Etiology | Primary response is extreme speed/fleeing; rarely bites; plays dead as last resort |
| Frustration Etiology | Repetitive running patterns if wheel removed; cage bar interaction |
| Learned Behavior | Minimal handleability even with consistent effort; some food-approach conditioning possible |
| Cognitive Dysfunction | N/A - very long-lived for hamster so less relevant |
| AI-Trainable Signals | Movement speed (fast=stressed, moderate=exploring), group proximity, sand-bathing frequency |
|---|---|
| Context-Dependent Vocalizations | Activity level interpretation requires time-of-day context (crepuscular peaks normal) |
| Interspecies Communication | Minimal interspecies bonding; observation-only relationship with humans recommended |