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Evolution



(tip to pedantsareus)

 

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Evolution : more or less true, but the narrator mis-states that the individual is the unit of select. it's not. The unit of select is the gene, not the individual i.e. altruism and kin selection.

Evolution : more or less true, but the narrator mis-states that the individual is the unit of select. it's not. The unit of select is the gene, not the individual i.e. altruism and kin selection.

What?

F-Yu: You state your hypothesis on a subject that remains quite controversial as if it were demonstrably true.

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Actually the unit of selection is the phenotype. Genes do not have a direct way to interact with the environment or to be selected for. Phenotypes do. That is, it is you height that may benefit you, not a specific gene.

That was a particularly good episode.

I loved the circle versus star species comparison animation (especially the last part, showing how nobody -except creationists- claim that stars should somehow change into circles for evolution to be true).

The "mutation tree" of the word "seed" was also very clever and effective.

It was also a good idea to use the peacock "sexual selection" example as a way of bridging the artificial-natural selection gap. The reason why this is effective is that there is a living/breathing "selective" agent in this example: the female peacock. When the selective agent is the amorphous environment, that is often a harder concept for non-biologists to get their head around.

Well done on all counts.

The theory of kin selection has been around since then 1950s and is an explanation based on observation, experimentation, and reasoning, that has been tested and confirmed as a general principle helping to explain and predict natural phenomena.

Yes, but the conclusion that the gene is therefore the unit of selection does not necessarily follow (though Dawkins' arguments here can be persuasive). In fact, many people use kin selection as an example of so-called "higher" levels of selection - in this case, selection on groups of related individuals. In general, though, I would say that the majority of evolutionary biologists still hold that the main level of selection is the individual, since that is the unit of reproduction.

Who, or what agency is putting these videos together. The narrator is very well spoken and the dialog is great.

Thaddeusphoenix - they are produced by Doug (aka QualiaSoup)

http://www.youtube.com/user/qualiasoup?blend=1

You might like to make any positive comments directly to him on his YouTube channel.

The slot machine analogy - wherein evolution uses the "hold" button- really hits that nail on the head.

Many of the most effective anti-evolution arguments stem from this common misconception. I've never seen the argument addressed so succinctly before.

This is YouTube at its best. Three cheers for all involved.

very well made video.

just one note: a lot of people who claim that evolution relies on pure coincidence/luck/whatever get this idea from genetic mutation and in that, they arent even that wrong. most times, genes mutate "by accident" and the chances of a succesfull mutation of a basetriplett (basentriplett in german, cant find an english translation) are very small in most cases

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