המועדפים של vandalsen

Ant air conditioning - whats going on here?

On a quick walk on a very hot afternoon I noticed these little mounds with wet "peaks" (pic4). The tube, probably from a broken nest, is about 4 cm. Taking a closer look, I could see some activity going on. Small black ants were scurrying around in the opening - one can just be seen circled in pic 3 but my cellphone camera could not catch them in action. The termites seem to have been pushed out. The one in pic 5 was alive but not very perky. A few other mounds in the vicinity also had wet "peaks". I would love to know what is going on here. It was really hot and dry - where did the moisture come from? Why do those termite bodies look so dry....?