INTELLIGENCE, POWER, 



The ratios of the combined weights of the brain and the 

 thyroid and adrenal glands to the body weight are: 



Shetland pony i : 285 



Zebra. i : 43 1 



Ass i : 505 



According to the power formula, the values are as follows : 



Animal Sex Brain Thyroid Adrenal Heart 



Ass (burro, Panama) Male 0.4357 0.2498 0.2764 0.3269 



Zebra Stallion 0.6431 0.6285 0.4740 0.4885 



Shetland pony Stallion 0.7850 0.6907 0.5289 0.5469 



The combined values of the brain and thyroid and 

 adrenal glands, according to the power formula, are: 



Ass 0.9619 



Zebra. i . 7456 



Shetland pony 2 . 0046 



These values show the energy-controlling system of the 

 Shetland pony to be 1.14 times greater than that of the 

 zebra and 2.08 times greater than the ass. 



In the Shetland pony the large brain, the large thyroid 

 gland, and the vigorous temperamental personality show 

 an adaptation to cold. In the zebra, which is tropically 

 adapted, there is also a large brain, large thyroid and 

 adrenal glands, and a highly temperamental personality. 

 The energy system of the ass seems to be far below that of 

 the cold-climate-adapted Shetland pony and the lion and 

 wild-dog-adapted zebra. 



In the Shetland pony, the high-energy equipment is nor- 

 mal for the subarctic region and conforms to the high- 

 energy equipment of the warm-blooded whale, the warm- 

 blooded porpoise, seal, and walrus found in the cold Arctic 

 Sea, as well as for the caribou, the wolf, and the Eskimo 

 found in the north. All these warm-blooded animals exhibit 



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