Beyond our eyes lies a world inhabited by a huge amount of tiny and extraordinary living beings. They are beings of a strange beauty that, thanks to the microscope, become visible and give us a wonderful range of shapes and colors. They are protozoa, bacteria, microscopic algae and tiny animals that make up our other world. A world imperceptible directly by our senses but that has a great importance both for our own existence and for the existence and functioning of what we know under the name of Biosphere.

And it is that beyond their beauty, their strange and surprising appearance, these tiny beings are the ultimate responsible for life on our planet as we know it and for the special characteristics that make the Earth such a special place in our Solar System.