building and refining my views
Want to see what an ants nest looks like? First, fill it with concrete, then excavate.
That is insane. How'd you come across it?
it was via reddithttp://www.reddit.com/r/science/comments/7dydc/scientists_pump_concrete_into_ant_colony_create/actually, the video linked to from that is a longer one - with more introductory stuff leading up to the bit where you see the nest.