Say cheese! – Production of food

Neocallimastix ein Pilz aus dem Darm des Steinbocks, Copyright S. Leis

In order that the ptarmigan and the chamois don’t starve.

Very clever – Slime moulds can find their way through a labyrinth.

With a simple kiss you give someone a lot of bacteria.

How toilet water becomes clean water.

Living creatures in the glacier.

Why glaciers become red

Watch microbes grow

Mud, eggs and paper – the Winogradsky-column

Lichens show us if the air is clean.