Research efforts in Danum have
revealed a tremendous variety of plants and a full range of
Sabah’s lowland fauna, including rare and endangered
species as such the Sumatran rhino, banteng (tembadau), Bornean
pygmy elephant, clouded leopard, orang utan and proboscis
monkey. More than120 mammals including 10 species of primates,
40 species of fishes, over 300 species of birds, reptiles,
amphibians and a profusion of butterflies are found here.