236 CURIOUS HOMES AND THEIR TENANTS. 



noticed upon the ground where they have fallen, but 

 are soon utilized by the Siberian fox, who not only 

 stows itself away in it as snugly as a hermit crab in a 

 sea shell, but employs it as a dwelling place in which 

 to nurse and rear its little family in comfort and 

 safety. 



A CITY OF BIRDS. 



THE PENGUINS. 



there are mammals, such 

 as seals and walruses, that 

 can not wait, so there 

 are many kinds of birds 

 — some, strange to say, 

 with large and well- 

 developed wings — that 

 can not fly. The pen- 

 guin, properly speaking, 

 has neither legs nor 

 wings ; what answer for 

 the latter are paddle- 

 shaped limbs something 

 like the flippers of seals ; and the legs of the bird are 

 so illy adapted for walking, that while some species 

 can shuffle along much like a person whose feet are 

 inclosed in a narrow sack, others can not walk at all, 

 and get about on shore by jerking themselves for- 

 ward with a hitch and a short jump. 



Kock-hopper penguin. 



