Hamsters are nocturnal burrowing rodents with high locomotion and digging needs that are frequently compromised by small enclosures and inadequate enrichment, causing chronic frustration and stereotypic behaviour.
Hamster welfare in typical retail enclosures is often significantly compromised. Standard cage sizes sold in pet shops are frequently below minimum welfare requirements. Small wheels cause spinal stress. Shallow substrate prevents burrowing. Improving hamster welfare requires owner education at point of sale and stronger retail welfare standards.