Very little has been recorded about the biology of this species, but there are certain characteristics that dipterocarps, and more specifically Shorea species, share. Dipterocarps within a region all flower at the same time once or twice a decade, flowering over several weeks and setting seed in unison. Unlike most dipterocarps, however, Shorea species have a unique pollinator, minute thrips which breed in the young flower buds and mature by the time the flowers open, which occurs at dusk. The thrips move from flower to flower to feed on the flower petals and pollen. Although this doesn’t pollinate the flowers, as the tree cannot self-pollinate, the propeller-shaped flower petals drop off by noon the next day laden with pollen-covered thrips. Since these enormous trees grow way above the canopy, the petals are carried off into the forest by the wind. As evening approaches and a new set of flowers open, the thrips fly up to feed on the new flowers, and thereby cross-pollinate with other trees. Dipterocarp trees grow very slowly, usually only flowering and fruiting after 60 years (4).