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. Reacting 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 
