even die out, because of traveling bars. 
So our ant hill can be counted very lucky 
when it is bothered only by such things 
as little mice-ants. 
WAR 
But the day comes when the ant hill 
is attacked by its worst enemies — other 
ants. One afternoon the scouts and 
guards posted around the ant hill come 
running to the entrance. They bang 
their heads in a certain way against the 
walls of the tunnel. This banging carries 
a message to the ants inside. It is a 
danger signal! "Red ants! Red ants!” 
That is what the guards are telling. The 
message is carried through the walls, 
taken up by other ants and repeated, 
and in an instant all the ants in the hill 
have been warned. 
At once all regular work stops. The 
colony must be saved. Guards are placed 
at the entrance. The Queen, the ant 
35 
