FINDING NATURE’S TREASURES 
117 
“It needs those sharp little teeth to catch and eat mos¬ 
quitoes, gnats, and moths when it is flying around in the 
air and getting its supper,” explained Uncle Jack. 
“This bat has wings like a bird,” observed Marylee. 
“But its teeth are like a mouse’s, and it has fur instead 
of feathers. Why! it even has ears. Isn’t this the queer¬ 
est bird, Uncle Jack?” 
“It does fly like a bird,” he agreed; “but it isn’t one. 
It is a flying mammal.” 
“Why do you call it a mammal?” asked Buddy. “I 
never heard of a mammal before.” 
“All animals which feed their babies milk such as the 
