The Cows that Ants Milk 



21 



always setllin^ in a cheese, all ready-made iood ior 

 them, without the trouble or exertion of hunting. 



Creatures which reproduce at such a rate, how- 

 ever, invariably pay the ju-nalty for their rapid 

 increase bv an equally rapid and enormous death- 

 rate ; were it otherwise, the offspring of a siui^le 

 pair of codiish (with their million e^j^s) would soon 

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



NO. 8.- rOMIC KNKMY WHO I'OSKS AS OI.O-fl.OTHKS MAN. 



descendants of a single viviparous aphis would 

 cover the earth with a ten feet thick layer of teeminj; 

 L^reen-llies. However, Nature has remedies in store 

 for them. Storms of rain and hail kill mvriads of 

 aphides ; sudden chaiiL^es of weather wilt them and 

 nip them up; imuunerabU' enemies make an honest 

 livelihood out of them. Another of these ubiqui- 

 tous foes is ^M'aphically represented in Xo. 8 — the 



