This is an artist's representation of the planet Zeerocks before "The Great Migration." Notice the abundance of lush conifer trees.  The microbial citizens of Zeerocks used the spikes protruding from the top of their form to insert themselves into the bark of the tree, enabling them to obtain nourishment from the woodpulp of the trees.

 
 

However, other larger organisms on Zeerocks saw the lush foliage only as raw material for industry. They destroyed the entire face of the planet, completely disregarding the potential that other, smaller organisms needed the trees for shelter and nourishment. For information on how we can prevent this from happening to earth, click here.