HABITS OF BATS. 



589 



Bats live in caves and in the hollow of trees by day ; all 

 hibernate in the same situations, going into winter quarters 

 in the autumn, and reappearing in the warm twilight of 

 spring. Though the eyes are small, and the sight, so far as 



Fig. 511.— Skeleton of afimit Dat (Pieroptjs).— After Owen. 



we know, deficient in keenness, they show wonderful skill 

 in avoiding objects during their rapid flight. The ears are 

 very large, and in the vampires the nose is adorned with. 



