Paul Davies and Cancer in the Perspective of Evolution
Nothing in biology makes sense - except in the light of evolution.
Cancer pervades the biosphere.
Cancer is deterministic and effective, not random in its behaviour.
It looks like a pre-programmed response to some sort of stress. Cells come pre-loaded with a cancer subroutine that can be triggered by a variety of insults.
Cancer might be an indespensable corollary to the rise of multicellurality and hasn´t been eliminated because of embryogenesis.
The same genes active in cancer are active during embryogenesis.
As cancer progresses it goes evolutionary further back.
very interesting, thanks for posting!