So according to the Medea Hypothesis life is it's own worst enemy.
Sort of has the ring of truth, don't cha think?
And paleontologist Peter Douglas Ward wants us to know that:
"Multicellular life, understood as a superorganism, is suicidal."
So all you superorganisms out there take note. If you've ever been to a bar late on a Saturday night, you know what he's talking about.
"Succeeding at suicide would return Earth to the microbial-dominated state that has been the norm for most of its history."
The Microbes shall inherit the earth! All hail the microbe!