You can change the theme as often as you'd like (although that's not recommended from a consistency aspect), and it can be done in several mouse clicks. (thecollegeinvestor.com)
One was a standard, single mouse cage with bedding, food and water, and the other was a much larger design in which several mice were grouped together. (scientificamerican.com)
The first major progress in achieving this came around a decade ago, when several mouse studies reported success in reducing the activity of the gene. (en.hdbuzz.net)