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. 2016 Jun 29;3(6):160136. doi: 10.1098/rsos.160136

Figure 1.

Figure 1.

Photograph of a semi-naturalistic cage. Cages were split into four levels connected by ramps. Each cage was furnished with litter boxes, several PVC pipes, a climbing structure, a hammock and a horizontal rope across the top floor. The bottom level was filled with soil substrate.