130 
MAMMALS 
of ancient Greece and Rome mules were used in agriculture. 
They are stronger, more patient, live longer, and are surer 
footed than horses. Because of their great endurance and 
adaptability, they are more widely used than horses. 
104. The Cow. — Cattle are descended from the wild ox 
of Europe and Asia, and practically all our popular breeds 
Figure 121.— Holstein Cow and Calf. 
This cow gave 653 pounds of milk in seven days and 101 pounds in 
one day. The 653 pounds of milk yielded a little over thirty-three pounds 
of butter. This is one of the highest records ever made. The Holstein 
breed of cows is also as good for beef as they are large. 
have been developed in Europe, mainly in the British Isles. 
There are two main types of cattle: the beef type used for 
food and the dairy type most valuable for the milk, butter, 
and cheese that they produce. The beef type is character¬ 
ized by “ blocky ” bodies, a form which yields the greatest 
quantity of meat. The beef cow is not expected to produce 
much milk. Shorthorns and Herefords, English breeds, 
also Angus and Galloway, Scotch breeds, are good repre- 
