In biology, the concept of relatedness is defined ... Darwin's view of the evolutionary tree is beautifully expressed in the following quote: The affinities of all the beings of the same class ...

Finally, the three-domain structure of Woese's tree (Figure 1a) shows that evolutionary history is decoupled from biological organization. Indeed, archaea and bacteria appear very similar ...

In this evolutionary tree, species A and B share a recent common ancestor. Species A is therefore most similar to species B. Species F and G also share a recent, common ancestor, however this ...

To help you explore this tree and understand the amazing ... “Nothing in biology makes sense except in light of evolution.” The Evolution Lab features two interactive digital learning tools ...

An evolutionary tree depicting the relationships among living apes, Ardi, and modern humans. Each branch on the tree represents a species and their intersections represent their common ancestors.

These phylogenetic or evolutionary trees are traditionally built by comparing ... contains about 500 protein kinases that regulate most aspects of our biology," says Dr. Notredame.