Reproduction
The gestation time for common planigale is 19–20 days. At the end of that period, the female gives birth to 5-11 young; the number varies but tends to be consistent with the number of teats the female possesses. They are born at an early stage in development and migrate to the pouch, where they suckle until they are fully developed. Young fully emerge from the pouch around 28 days of age, begin eating solid food at around 55, and are independent of the mother at 70. Breeding begins at around 290 days, later than many similar species. Males continue breeding until at least 24 months of age. Females are polyestrous and can raise several litters a year; in captivity, breeding takes place year-round.
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