Officer of Natural Resources Conservation Center (BKSDA) Aceh. communities, TNI soldiers and environmental activists released Siamang (Symphalangus syndactylus) in Aceh Jaya district forest, Aceh, on Thursday (1/2). BKSDA Aceh releases four endangered and protected wildlife ie two Sumatran tigers (Hylobates agilis) and two Siamang cows which are handed over to the agency and rehabilitated before being returned to their habitat in the wild.