whereas external branches connect a tip and a node. A clade is a piece of a phylogeny that includes an ancestral lineage and all the descendants of that ancestor. This group of organisms has the ...

What do phylogenetic trees illustrate? These diagrams don't just organize knowledge of biodiversity - they also show us that living species are the summation of their evolutionary history.

In addition to new circuit innovations, a major driver for these improvements has been the advancement of fabrication process or technology nodes that essentially make electronic devices smaller and ...