ABOVE: Black-eared Pigmy Squirrel Nannosciurus melanotis photographed eating bark on a tree next to the forest trail that leads up to the Kalimantan View Point at the Borneo Heights Resort at Gunung Penrissen.

Two species of Pigmy Squirrels are found in the forest surrounding the Borneo Heights Resort, at Gunung Penrissen. Most common is the Bornean Pigmy Squirrel Exilisciurus exilis. The Black-eared Pigmy Squirrel is generally much less common than the E. exilis in Sarawak and so far has not been recorded in either Brunei or Sabah.
