88 



INITIATIVE IN EVOLUTION 



lives to eat — and be eaten and drunk — but her wild ancestors 

 and relatives have had far from an easy life, though this (in them 

 even) has not expressed itself in animal pedometers. But on her 

 neck, back, flanks, legs and haunches the cow has some interesting 

 specimens of areas where the normal hair-slope is reversed in 

 accordance with her habits. 



The most striking of these is shown in Figs. 34 and 35, where 

 the bare form of the animal is shown and the dark thick arrows 



WHORL. CREST.. 



Figa. 34 and 35. 



(a) Side view of cow, showing arrangement of hair-streams on the back. 

 (b) View of back of cow, showing the same. 



are made paramount in order to make the remarkable arrangement 

 of her hair along the back so clear, that little verbal description is 

 needed. 



Behind the level of the horns the normal or backward slope 

 proceeds until the middle of the length of the neck is reached, 

 when it encounters transversely a sharp upstanding crest and 

 beyond this the hair is directly reversed from a point over the 



