Opinions on Last universal ancestor

Here you have a list of opinions about Last universal ancestor and you can also give us your opinion about it.
You will see other people's opinions about Last universal ancestor 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 lowest common ancestors in graph theory and computer science, see lowest common ancestor.
"LUCA" redirects here. For other uses, see Luca (disambiguation).

The last universal ancestor (LUA), also called the last universal common ancestor (LUCA), cenancestor, or progenote, is the most recent organism from which all organisms now living on Earth have common descent. Thus it is the most recent common ancestor (MRCA) of all current life on Earth. The LUA is estimated to have lived some 3.5 to 3.8 billion years ago (sometime in the Paleoarchean era). The 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.

Charles Darwin proposed the theory of universal common descent through an evolutionary process in his book On the Origin of Species in 1859, saying, "Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth have descended from some one primordial form, into which life was first breathed."

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

What do you think of Last universal ancestor?

You can leave your opinion about Last universal ancestor 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 Last universal ancestor to have a better knowledge about it: