Opinions on Common descent

Here you have a list of opinions about Common descent and you can also give us your opinion about it.
You will see other people's opinions about Common descent and you will find out what the others say about it.
Also, you will see opinions about other terms. Do not forget to leave your opinion about this topic and others related.

For use of the term in linguistics and philology, see Comparative method (linguistics), Historical linguistics, Proto-language, and Textual criticism.

Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor. There is evidence of common descent that all life on Earth is descended from the last universal ancestor.

Common ancestry between organisms of different species arises during speciation, in which new species are established from a single ancestral population. Organisms which share a more recent common ancestor are more closely related. The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. The two earliest evidences for life on Earth are graphite found to be biogenic in 3.7 billion-year-old metasedimentary rocks discovered in Western Greenland and microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia. All currently living organisms on Earth share a common genetic heritage (universal common descent), with each being the descendant from a single original species, though the suggestion of substantial horizontal gene transfer during early evolution has led to questions about monophyly of life.

Universal common descent through an evolutionary process, that there was only one progenitor for all life forms, was first proposed by Charles Darwin in On the Origin of Species, which ended with "There is a grandeur in this view of life, with its several powers, having been originally breathed into a few forms or into one". The theory has been recently popularized by Richard Dawkins, in The Ancestor's Tale, and others.

In the image below, you can see a graph with the evolution of the times that people look for Common descent. And below it, you can see how many pieces of news have been created about Common descent in the last years.
Thanks to this graph, we can see the interest Common descent has and the evolution of its popularity.

What do you think of Common descent?

You can leave your opinion about Common descent here as well as read the comments and opinions from other people about the topic.
It's important that all of us leave our opinions about Common descent to have a better knowledge about it: