Females and males sexually mature at about age 2. The gestation period lasts from 275 to 315 days. When calving time nears, females will go off alone. Usually one offspring is born and rarely twins. Young have thick, yellowish-brown, woolly hair.
Females usually have one calf every year.
There is no evidence that anoas are territorial but males have been seen marking trees with their horns and soil-scratching after urinating. Lowland anoas spend most of their time in shady forests and they are most active in the morning and afternoon. Anoas frequently wallow in mud and water. Anoas have been seen drinking sea water which might fulfill their mineral needs in areas that do not have salt licks or mineral spring water. Aggressive Anoas In Sulawesi, anoas have a reputation for being very aggressive toward humans.