The gestation period of female wombats has been estimated at 20 days. Young appear to be born at any time of the year, but births probably peak in late autumn (April to June in Australia). Females have pouches, like those of kangeroos, in which the young complete their development. As mentioned above, the female's pouch opens posteriorly. The pouch contains two teats; however, the normal liter size is one, although twins are known. Young first leave the pouch at six to seven months, but may return occassionally for three more months. Weaning may not occur until they are 15 months old and sexual maturity is attained after two years. The average lifespan is five years, although this species is capable of a long life span in captivity. The record longevity is 26 years and 1 month.
The major causes of death in wild populations include starvation during droughts, outbreaks of mange, predation by dingoes, and collisions with road vehicles.
Nowak (1983), Angus and Robertson (1983), Macdonald (1984)
Average birth mass: 0.5 g.
Average gestation period: 27 days.
Average number of offspring: 1.
Average age at sexual or reproductive maturity (male)
Sex: male: 730 days.
Average age at sexual or reproductive maturity (female)
Sex: female: 730 days.
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