expelling the newborn into the cupped tail membrane. At birth, each young weighs 1.5-2 g (0.07 oz), its flesh colored skin covered with fine silky hair, the eyes opening within 24 hours. For the first ...

Other species, such as the little brown bat (Myotis ... from hibernation, bats travel to their summer roosting locations. Females roost together in groups, termed "maternity colonies," where they give ...