Reflections on the origin of life

The question of the origin of life cannot be explained by appealing exclusively to Darwinian evolutionary mechanisms, as many experts tend to assume, but requires a profound change in perspective.

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ancestro universal

The universal ancestor

The cenancestor is defined as the last common ancestor of every currently living being. Its nature has been inferred from the identification of homologous genes between archaea, bacteria, and eukaryotic lineages. These inferences indicate that the cenancestor had a relatively modern protein translation system, similar in complexity to that of a current cell. However, the key enzymes for the replication of genetic material and for cell membrane biosynthesis are not homologous in bacteria, archaea, and eukaryotes. Here, we briefly review the history of the concept of the last universal common ancestor and the different hypotheses proposed for its biology.

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Darwin day

On 12 February 1809, English naturalist Charles Darwin was born. He would go into history as the father of the theory of evolution. His works, nonetheless, go farther than On the Origin of Species. We offer a selection of texts published by Mètode.

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The ageless clam: Is «the inevitable» really inevitable?

L’envelliment és una disminució de l’eficiència de les nostres funcions fisiològiques que, en cas de no morir abans per causes externes, conduirà finalment a la mort.

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29-84

Distributive Justice and Evolution

Becoming informed about the relevant scientific findings can help us make the most plausible interpretation of what philosophers have said, for example, ruling out literal readings.

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juan maeso

Evolution in Court

  The last two decades have witnessed the widespread use of genetic testing in courtrooms, to identify criminals from biological remains, determine paternity or identify corpses. Less is known, however, about expert reports based on the use of molecular phylogenies. Such reports are founded on studies

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Vaccines and evolution

From the perspective of public health intervention, there is no better weapon than one which can prevent disease transmission or onset. Within the field of infectious diseases, vaccines have become the weapon that can control many of them.

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Frans de Waal

Frans de Waal

Interview with Frans de Waal, Primatology professor at the University of Emory (Atlanta).

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Noam Chomsky

Interview with Noam Chomsky

Noam Avram Chomsky turned the field of linguistics upside down in 1957 when Syntactic Structures was published. He argued that the capacity for language acquisition is innate in humans.

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