Cool thing about the anthills too is they build them around the holes in advance of when its going to rain. Far and away a more reliable source than weather reports. If you see a bunch of anthills then it is going to rain in the next few days. Bigger hills= bigger rain amounts.

This is in the temperate zone of NA, I know tropical ants deal with rain differently at times. Also doesn't work in winter since they are in winter mode.

I have often wondered if I kept an ant colony inside if they would continue that behavior or if they have to be outside to detect a coming storm. Also wondered if anyone ever did an in-depth study to see if there was a predictable time table to the anthills vs rain event.