AntWorks part III: tunnels begin
In the mean time, ants started to dig deeper. Although it seems that this work has been assigned to only some individuals, at times even traffic jams occurred!
Some fresh observations: Ants are much more active (in digging the tunnels) when the air is colder and it is dimmer outside. That also means that during the days the colony is almost static. After I exposed the habitat into a straight sunlight, all ants dived deep into the holes.
I was told that some bigger species are scheduled to arrive in next few hours or days, so we might witness soon what does it look like when one needs to fight for a gel!