Skepticism Song

"The number of
intermediate varieties
which have formerly
existed
on earth
must be truly
enormous.
Why then is not
every geological formation
and every stratum
full of such intermediate
links?
Geology assuredly
does not reveal
any such
finely graduated
organic chain;
and this, perhaps,
is the most obvious
and gravest objection
which can be urged
against my
theory."

- Charles Darwin 1902 edition.