Related: Which animals are evolving fastest ... pose would lead blood to pool in a person's head, resulting in health problems over time, a bat's compact size lets its heart easily pump blood ...

The female hangs head up as the young is born ... and can be much more dangerous than the presence of the bats. In the United States bats are beneficial members of the animal community. They help to ...

Mating among these bats is initiated with ritualized calls and affectionate head nuzzling. The female stores the male’s sperm until spring, when ovulation, fertilization, and gestation occur.