Sprawling termite mounds found in Brazil

The video discusses termite mounds in northeast Brazil, dating back nearly 4000 years. These mounds, created by the species Sentermis tyrus, cover 230,000 square kilometers. Each mound is about 2.5 meters tall and 9 meters wide. The total soil volume of these mounds is equivalent to 4000 Great Pyramids, as per a study in Current Biology.

What new insight or understanding did you gain from this video?