EVOLUTIONARY ASPECTS IN MAMMALS 



1200-1 

 1000- 

 800- 

 600 

 ' 400 ^ 

 200 



O O O O O o 



OXYGEN CONSUMPTION 



OOOOoOOOOOO 



TIME IN HOURS 



2H 3H 



Figure 18. Oxygen consumption and deep rectal and skin temperatures at 

 various ambient-temperature levels in the armadillo. (Johansen, 1961). 



121 



