Among them are 'workers' of five millimeters in length 'soldiers' of ten, and males and females of twenty.

We find also a kind otherwise very curious: the _sirafous_ half an inch in length, which have pincers for jaws, and a head larger than the body, like the sharks.

They are the sharks among insects, and in a fight between some _sirafous_ and a shark, I would bet on the _sirafous_." "And where are these _sirafous_ commonly observed ?" then asked Dick Sand.
"In Africa," replied Cousin Benedict; "in the central and southern provinces.

Africa is, in fact, the country of ants.

You should read what Livingstone says of them in the last notes reported by Stanley.
More fortunate than myself, the doctor has witnessed a Homeric battle, joined between an army of black ants and an army of red ants.