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Darwin's ideas still make sense

celebrate the anniversary of the birth of Darwin who developed a framework in which they are fitting a lot of comments to this day. So powerful are these ideas framework that has been exported to other domains and thus, one speaks of evolutionary linguistics or psychology.

So far no accounts out why it happened so long since the first cells (to make about 3,800 million years) until the onset of multicellular organisms (as recently as 600 million years). Begin to appear some reasons, this geological event that would explain why it took so long.

have also found a very old trail of multicellular animal life. And how important are these sponges? Possibly invented sexual reproduction system that we have been spending all animals. And they say that we are related!