96 THE STUDY OF ANIMAL LIFE 



uttering a squeak, or rather a sound between a 

 squeak and a whistle, appearing as it does at a 

 time when other creatures are hidden. 



We welcome its presence because it throws a 

 ray of light into what would otherwise be grey 

 and sombre. Although becoming torpid during 

 the Winter months, when in full life and activity 

 it is one of the most sensitive creatures. We are 

 told that a Bat deprived of its eyesight, and let 

 loose in an apartment where many cords intersect 

 the space, will fly about and thread its way out 

 and in without touching them. We know, too, 

 that many blind men develop a sense of feeling 

 which warns them when approaching any obstruc- 

 tion in their path. 



Bats are real fliers, but there are connecting 

 links between flying and leaping in foreign climes. 

 There is the Flying Fox and the Flying Squirrel, 

 animals that are supplied with a membrane 

 stretching from their fore feet and legs to their 

 liind feet and legs. When moving from branch 

 to branch, or tree to tree, they make a leap, and 

 spreading out their four legs they stretch this 

 membrane, and swim or float from one place to 

 another. They at the same time give a quivering 

 undulation of the membrane. 



Flying Fish, — As there are birds which fly under 

 water, so also there are fish which fly when out 



