14 of the 19 chiropteran families lack data on postnatal growth, and < 3% of known bat species have been investigated regarding their growth and development. Eighty percent of studies on postnatal growth are restricted to the family Vespertilionidae, particularly bats of the temperate zone. 翼手目的19科中有14科缺少出生后生长发育的数据,在已知蝙蝠种类中,对生长发育进行过研究的不超过3%,并且80%的研究局限于蝙蝠科,尤其是温带蝙蝠。