ABOVE: This Colugo Galeopterus borneanus regularly visits the Meriuk Farm Stay orchards at Tutong in Brunei to lick the bark of the Binjai trees. The area circled in green on this tree trunk is a particularly favoured area. (The colugo moved sideways after a flashlight was shone on the bark.) The green arrow points at an area of leaking sap which dries black a characteristic of trees in the Anacardiaceae mango family
This article above on Rengas Poisoining or Anarcard Dermatitis is copied from James LaFrankie’s excellent book Trees of Tropical Asia. This book is an essential guide for anyone interested in the ecology of Borneo’s forests.