(47

(Mammalia Hair)

it is not probable that the beard has been acquired for a different purpose from that, for which the whiskers, moustaches & other tufts of hair on the faces of monkeys have been developed; & these can hardly serve as a protection. Must we attribute such hairy & other analogous masculine appendages to mere purposeless useless function useless variability? This is possible; for with the male of some of several several some of our domesticated quadrupeds, certain characters, which they have not inherited from their parent-species, have appeared are present in the males alone, or are more developed in the male than in the female,—

Thus as the hump in the male Zebra, the tail in fat-tailed sheep rams the arched outline of the forehead in the males of several breeds of sheep, the mane in the rams of an African sheep breed, & lastly the presence of a mane, long hairs on the hinder thighs & a dewlap in the male alone of the Berbura goat. & their absence in the female of this goat.*(40) Now although we ought always to be very extremely cautious in concluding, as shown in my work on Variation under Domestication, that any character, even with animals kept by semi civilised people, has not been subjected [text excised] selection, yet this is not probable with