FAMILY INSTINCTS 65 



plays made before copulation, which are usually called the 

 displays of courtship. It will be further shown that, 

 whereas the parental displays are to protect the young, 

 the sexual displays of the male are to protect the female. 



Whilst the parents are responding to these 

 instincts, the young are behaving quite dif- 

 ferently. Eeacting to a warning of danger, 

 given (either vocally or by other ways) to 

 them by the parents, they instinctively make 

 themselves as inconspicuous as possible : they 

 at once squat or seek cover. This family 

 character possessed by the young must con- 

 trol Natural Selection within the family, just 

 as the parental instincts do. The young of 

 a family who instinctively seek cover, when 

 warned by the parents, have a better chance 

 of surviving and of reproducing themselves, 

 than the young who do not thus respond to 

 their parents' call. 



In like manner can be accounted for very 

 many of the instincts found confined to parents, 

 and those possessed solely by the young. 

 Further, as will be shown later, many of the 

 characters found confined to either parent or 

 young, no matter what their nature, either 

 structure, form, or colour, can be similarly 

 explained. 



Instincts have been chosen first for con- 



E 



