90 MIGHTY ANIMALS 



on the outside of his head. This was the brain he 

 carried inside of it. For the Dinoceras had the small- 

 est brain in proportion to his size of any land animal 

 so far known. The body of a man weighs only 

 thirty-five times as much as his brain. The body of 

 the Dinoceras was four thousand times heavier than 

 his brain. What a stupid creature he must have 

 been ! Probably he was provided with his horns 

 and his tusks so that he could protect himself against 

 the attacks of other animals, which, though smaller 

 than he, were larger-brained and therefore quicker 

 in their movements, and more cunning. In his 

 combats with these brainier animals the Dinoceras 

 for a long time came out the victor. Had it been 

 otherwise, these horned monsters which were about 

 the size of a big rhinoceros could not have lived in 

 such large numbers for many hundreds, perhaps 

 even thousands, of years. But, as they finally all 

 disappeared from the earth, it is natural to suppose 

 that the bigger-brained animals at last conquered 

 them. 



The only place where the Dinoceras has been 

 discovered is the desert that occupies southwestern 



