Assessment of cage use by laboratory-bred common marmosets (Callithrix jacchus) (1998)

Ely, A., Freer, A., Windle, C. et al.

Abstract

The veranda was found to be of enduring interest to the marmosets whose occupancy of this space was an order of magnitude greater than the rest of the cage. The veranda ... was the nearest part of the cage to people in the room. When the observer sat, the marmosets spent about the same amount of time in top and bottom halves [53% vs 47%] of their cages, compared to 69% in the top half when the observer stood.