Changes in Splenic Weight Associated with Hibernation in Bats.

Abstract

Data are presented which show that, in several species of bats, erythrocytes are stored in the spleen during hibernation and these are rapidly returned to circulation as the bats become active. This storage accounts for an increase in splenic weight of 500% in Myotis sodalis. Erythrocyte counts are lower in hibernating bats than in active ones.