We love a good video about robots of the future. Here are some 10-gram "Tribots" inspired by ants: they can talk to each other, assign roles to one another, and work together to complete tasks.
In one instance, the researchers set up one Tribot as a leader and set a second to follow it. The leader was able to detect a gap and signal its location to the follower. The follower, which wasn't paying attention to the terrain, simply got to the spot that its leader indicated and leapt over the gap once it got there.