Why standard commercial hamster cages are welfare-deficient and what minimum standards evidence supports for these popular small pets.
Hamster welfare is characterised by a dramatic gap between the welfare conditions that evidence supports and what is commercially available and typically purchased. The colourful, compact cages marketed as ideal for hamsters are almost universally too small, too shallow for appropriate burrowing and equipped with inadequate wheel sizes. The consequence is that the vast majority of pet hamsters in the UK and globally live in conditions where most natural behaviours are impossible and stereotypic bar-chewing is common. The welfare solution - larger, deeper enclosures with appropriate wheel sizes - is available and affordable for owners who are aware of the need. The primary barrier is that standard pet shop sales practice does not communicate these welfare requirements at point of sale.