REFLEXES, JXSTJXCT, AND lU:.\.SOX 



4.37 



or hibernates till sprin-. In sonic cases the climatic instinct 

 merges in the honiino; instinct an.l the instinct of reproduction. 

 V\h(Mi the l,u-(ls move nortli hi the sprii.fr thev Mn^^ mate 



and build their nests. Tlie fur seal jrnes home to rear its yountr. 

 The bear exchanges its bed for its lair, and its first ht -> 



after waking -is to make ready to rear its young. 

 ?9 



