276 
SEXUAL selection: mammals. 
Part 
II- 
bellowing serves as a call to the female ; but th® 
experienced observers above quoted inform me tl'id 
female deer do not search for the male, though tb e 
males search eagerly for the females, as indeed nag' 1 * 
be expected from what we know of the habits ot 
other male quadrupeds. The voice of the feiusl e ’ 
on the other hand, quickly brings to her one or 
stags , 3 4 as is well known to the hunters who in 
countries imitate her cry. If we could believe th lt 
the male had the power to excite or allure the feB> 9 ^ 
by his voice, the periodical enlargement of his voc ' 1 
organs would be intelligible on the principle of ses ,ul 
selection, together with inheritance limited to the safl^ 
sex and season of the year ; but we have no evide» c ® 
in favour of this view. As the case stands, the l° lU 
voice of the stag during the breeding season does »° 
seem to be of any special service to him, either dm' 111 ' 
his courtship or battles, or in any other way. But 11,a -; 
we not believe that the frequent use of the voice, uvd et 
the strong excitement of love, jealousy, and rage, f ° u 
tinued during many generations, may at last hi 1 ' . 
produced an inherited effect on the vocal organs 0 
the stag, as tvell as of other male animals? ^h 1 " 
appears to me, with our present state of knowledge 
the most probable view. 
I ho male gorilla has a tremendous voice, and wh f 
adult is furnished with a laryngeal sack, as is like"’^ 
the adult male orang.* The gibbons rank amongst t 
noisiest of monkeys, and the Sumatra species ^ 
sjndactylus) is also furnished with a laryngeal sack _ 11 
Mr. Blyth, who has had opportunities for observed 011 ’ 
3 See, for instance. Major \V. Ross King (‘ The Sportsman in 
I 860 , p. 53, 131) on the habits of the moose and wild reindeer. 
4 Owen , 1 Anatomy of Vertebrates/ vol. iii. p. 600. 
