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. Trait ...
The diversity of human languages can be likened to branches on a tree. If you’re reading this in English, you’re on a branch that traces back to a common ancestor with Scots, which traces back to a ...
Evolution, Vol. 72, No. 5 (MAY 2018), pp. 1050-1062 (13 pages) Variation in rates of molecular evolution (heterotachy) is a common phenomenon among plants. Although multiple theoretical models have ...
The placoderms were a diverse group of ancient armoured fishes and it’s widely believed that they are ancestral to virtually all vertebrates alive today, including humans. Placoderms dominated aquatic ...
Jonathan Keith does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...
Felix Gallet, Arbre généalogique des langues mortes et vivantes, gravé par Geusler de Genève (Paris, ca. 1800). Graphic Arts GAX 2011- in process Purported to be the first tree of languages, Felix ...
There are extinctions, and then there’s the “Great Dying.” That was the Permian-Triassic extinction around 250 million years ago, which wiped out nearly all life on Earth. Scientists have been ...
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