I think

"I think": Descent with Modification

The first phylogenetic tree, from Darwin's notebook of 1836. This notebook, along with the diagram, was in 2021 reported stolen from its library, possibly as long as 20 years ago. Theories of the "Mad Collector" abound.

HOMEWORK: Redraw Darwin's tree in modern format, noting in particular the living status of species A, B, C, & D.


All text material © 2021 by Steven M. Carr