Now it's 44 posted replies (not counting my #1) and 1,047 views. For every post there are still almost 24 lurks.
Before that: Pope fails to address 'intelligent design' theory of evolution
That had 110 replies and 1,223 views. Only 11 lurks per post.
And one more (with a more catchy title) posted 31 August: Most Americans Agree with Evolution [new poll]
That had 501 replies and 6,503 views. That's 13 lurks per post.
I suspect the number of lurks drops off after a thread gets old. Anyway, there really are loads of lurkers out there. The science threads are for them, not for the science-deniers who, although few in number, give a false impression of conservatism due to their posts.