Blue Duikers and their offspring
Blue Duikers are monogamous (meaning they only have one mate) and they only have one kid per year (unless they are subjected to hunting pressure, then they may have 2 or 3). Gestation lasts approximately 4 months and it's weight is 0.6 kilograms. Then after 5 months weaning happens. When a kid is born the father abandons the kid and leaves the mother to raise the kid for one month (So the father does not eat the kid). Young are only permitted to stay with the parents until they are 18 months old, then they kicked out of the territory. Females reach sexual maturity by 9-12 months and males in 12-18 months. (Honolulu Zoo par. 5)