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Figure 1: Macdonald, D. (ed.) (2001), The New Encyclopedia of Mammals, Oxford University Press;
Figure 1 The complex layered structure of a tropical rainforest is shown in the background, with approximate dimensions. A range of tropical tree squirrels of west Malaysian lowland forest are identified by their location in the forest profile; for completeness, their specific names are given. The key (bottom right) indicates the main components of the diet of each species. Daytime (diurnal) feeders are located to the left, night-time (nocturnal) feeders to the right