First off, there are animals living and Lichens forming . The best part is this environment is in Ecological Succession. As you can see barley animals are living in the environment because the Ecological is forming.
As Ecological is forming the climax is increasing and the climax species is adapting to it's environment like these trees in this image here. And also more animals are adapting as well.
In this image it shows that the environment is great and everything is really great, everything is living and having fun, until the earthquake strikes.
When the earthquake starts to begin it triggers the volcano to erupt. And all the water life and anything living goes to complete death, poor little animals.
In this image you are witnessing Secondary Succession and you can see the soil that was left behind. But mostly still dead you know
After awhile of no living thing, some plants start to form and that's called Pioneer Species, and the skies clear up and it's just a dead place now. Also Primary Succession is in this picture in those rocks.