Figure 1
Super-enriched terrarium. Each terrarium (100 cm × 34 cm × 40.5 cm)25 included wire mesh on top and on one of the short sides, a second level that could be reached via two stairs and a passable standard polycarbonate cage type III equipped with food and water. Additionally, wood shavings, two semi-transparent red plastic houses, a wooden climbing frame and pressed cotton as nesting material were provided (photo of the two black mice: Dirk-Heinz Loddenkemper).
