Maybe you wonder... what are they observing???
The answer is easy: our mould garden!
and also some lichens we add at the last moment...
And last but not least, a video on the notion of SYMBIOSIS, that kind of relationship we find in lichens (between a fungi and an alga) or, as we saw in Cosmocaixa, in termits (between them, remember, and some protozoa and some bacteria).