The shifting songs of Darwin’s finches have given new insight into processes that shape the course of evolution, preventing newly-forked branches on life’s tree from growing back together.
Even though it’s biologically possible for Geospiza fortis and Geospiza scandens — the original residents of the
We noticed a small change tonight on Facebook’s news feed: the font seems to have become smaller. It’s unclear how much the size was adjusted but it looks like the change is significant enough that it drew user attention as soon as the font was tweaked.







