Effect on Aggression
Actions	Significantly Reduced	Slightly Reduced	No Difference	Slightly Increased	Significantly Increased	Not Tested	Do Not Know
Enable food-seeking behavior to some degree
Provide tunnels
Provide a house/shelter
Provide a shelf/balcony
Provide a house/shelter
Provide an exercise wheel
Provide chewing sticks
Provide scented enrichment (a scent to prevent fighting)
Provide additional environmental enrichment
Avoid enrichment that causes competition
Provide extra nesting material
Transfer old nesting material to new cages
Transfer old enrichment to new cages
Transfer old bedding to new cages
Establish groups before sexual maturity
Handle males and females separately
Use special routines during experimental procedures
Other, please state: