THE MOUSE 



449 



which, hke the birds, seem to have penetrated into the air to 

 prey on the flying insects. Not all bats are inscctivoi'ous, 

 however, for certain Old-world l^ats feed on fruits. (Jur 

 commonest species are the little brown bats (with a nearly 



Fig. 407. — Simia satyrus, the orang-utan, in breadfruit tree. From a 

 photograph of a group in the Field Columbian Museum. 



furless wing) , and the red bats (with patches of fur on the wing 

 membrane) . 



The Primates ^ are of interest because we ourselves are 

 placed in this category, together with certain other animals 

 that have attained a less lofty station. The lowest Primates 



^ primus, the first. 

 2g 



