I noticed similarity in the covers of three forthcoming books about evolution and creationsm; they are The Happy Atheist by PZ Myers, American Genesis: The Evolution Controversies from Scopes to Creation Science by Jeffrey P. Moran, and Among the Creationists: Dispatches from the Anti-Evolutionist Front Line by Jason Rosenhouse.
The Dispersal of Darwin 
No wonder, this is just called convergent evolution 😉