Prevost's Squirrel is a diurnal, medium-sized, arboreal squirrel scientifically known as Callosciurus prevostii (Lurz et al., 2017). It is the largest squirrel of Callosciurus species (Baker, 2021). It mostly consumes coconut, rubber seeds, oil palm fruit and other soft fruits, such as figs (Hoffman, 2003). The fruit seeds will be dispersed on the ground and new plants will grow in different areas. Other than that, the Prevost's Squirrel also eats insects like termites, ants and beetles, which were dug from decaying wood (Francis & Barrett, 2019).

Like its general features, Callosciurus prevostii is also known as Asian Tricolored Squirrel or Tupai Asia Tiga Warna in Malay. This species can easily be identified by the tricolored body pattern with black upperparts and dark reddish underparts together with white stripes along the sides (Lurz et al., 2017). Callosciurus prevostii has an arboreal and diurnal behavior, where they are active during the day and sometimes will descend to the ground from the tree canopy to cross the gaps (Francis et al., 2019). Callosciurus prevostii communicates with each other through touch or smell. In addition, the male chases the female before mating, by emitting squeaking sounds loudly and the female will respond to the squealing along with screeches to show her reaction (Lurz et al., 2017).