Yes, hamsters are classic nocturnal animals, with activity patterns opposite to human circadian rhythms. Here’s a detailed breakdown:
1. Nocturnal Traits
Activity Patterns
Hamsters sleep in their burrows during the day (about 12–14 hours) and become active at night, with peak activity from dusk to early morning (e.g., 7 PM–4 AM).
Physiological Adaptations
Their retinas have a high concentration of rod cells, enabling clear vision in low light. However, their eyesight is poor in bright daytime light.
2. Reasons for Nocturnality
Predator Avoidance
Wild hamsters evolved to be active at night to minimize detection by diurnal (daytime) predators.
Environmental Adaptation
Their burrow-dwelling nature makes them prefer dark environments, which they associate with safety.
3. Warnings About Abnormal Behavior
Forcing them to change their nocturnal rhythm (e.g., disturbing sleep during the day) can cause circadian disruption and shorten their lifespan.
This natural behavior should be respected in pet care—for example, providing exercise wheels or toys at night to meet their activity needs.