They have also been known to eat small vertebrates like lizards and mice. Their prey is caught on the ground. In a captive colony of S. macroura , the breeding season was found to last from June to February. These animals have an iteroparous life-history strategy. Females are polyestrous with one cycle lasting approximately 26.2 days.
Ovulation occurs spontaneously.
Time of gestation is 12.5 days and after birth the young are carried in the pouch for 40 days. Litter size can range from 1 to 8 young. Female striped face dunnarts have 8 mammae. If a female has only 1 or 2 young she may not rear them. After the young leave the pouch, they are suckled in the nest for another 30 days.