 |
"The affinities of all the beings
of the same class have sometimes been represented by a great tree...
As buds give rise by growth to fresh buds, and these if vigorous,
branch out and overtop on all sides many a feebler branch, so by
generation I believe it has been with the great Tree of Life, which
fills with its dead and broken branches the crust of the earth, and
covers the surface with its ever branching and beautiful
ramifications."
-- Charles Darwin, 1859
|