I have an ant nest in a jar. Whenever I want to observe them, I have to remove the cover and therefore put them in light - that scares them. They also can see shadow cast by myself.
I often throw in some food when I'm uncovering the jar.
I was curious if ants will ever remember that I'm not dangerous and that light means food.
If not, are there other things they can learn? Do they teach each other to hunt? Can queen learn things ants can not (queen has shown a lot of individuality compared to ants)?