THE Cows THAT ANTS MILK 



21 



always settling in a cheese, all ready-made food for 

 them, without the trouble or exertion of hunting. 



Creatures which reproduce at such a rate, how- 

 ever, invariably pay the penalty for their rapid 

 increase by an equally rapid and enormous death- 

 rate ; were it otherwise, the offspring of a single 

 pair of codfish (with their million eggs) would soon 

 turn the sea into one solid mass of cod ; while the 



NO. 8. COMIC ENEMY WHO POSES AS OLD-CLOTHES MAN. 



descendants of a single viviparous aphis would 

 cover the earth with a ten feet thick layer of teeming 

 green-flies. However, Nature has remedies in store 

 for them. Storms of rain and hail kill myriads of 

 aphides ; sudden changes of weather wilt them and 

 nip them up ; innumerable enemies make an honest 

 livelihood out of them. Another of these ubiqui- 

 tous foes is graphically represented in No. 8 the 



