I just came across something from Herodotus, an ancient Greek who was the first person to write down history. It's thanks to him that we know about the Persian invasions of Greece, the battles of Marathon and Salamis, and a whole heap besides about ancient Greece and the surrounding countries. But this being a QfG forum, here's the link - he wrote the following:
The Man-Eating Giant Gold-Mining Ants of India
There are ants smaller than dogs but larger than foxes. These ants live underground... the sand they dig out has gold in it. The Indians go into the desert to get this sand. Each of the prspectors takes three camels. ...They deliberately set out at the hottest time of the day, when the heat has driven the ants underground. ...The Indians fill their bags with sand and then run for home as fast as they can.
(Herodotus, The Histories, 3.102 FF)
Obviously this is pure fiction.

