Believed to be a rare photo of the very scarce Shrew-faced Ground Squirrel Rhinosciurus laticaudatus taken at Sepilok in Sabah by Jessica Haysom.
Photo courtesy of Shavez Cheema of 1StopBorneo Wildlife.
This ground squirrel is relatively large (about the size of Prevost’s Squirrel) and appears to be nocturnal or crepuscular (active only at dawn and dusk). The most likely confusion species is the much more common Low’s Squirrel Sundasicurus lowii which is also most active at ground level but is only two thirds the size of the Shrew-faced Ground Squirrel. Comparing the noses of the two species Rhinosciurus has a longer and more pointed nose.