The evolution of biological species and chance ...

[Christophe]

I just saw the same when passing my tonic bottles to UV (280 nm)

[Christophe]

That's crazy ! This fish has a much longer genome than ours!

14 times larger than the human genome! Indeed, the genome of this fascinating animal is 43 billion base pairs. "When you look at it from a genomic point of view, it's halfway between a fish and a terrestrial vertebrate."

Discovery: Australian lungfish has the largest genome of any animal sequenced so far

https://trustmyscience.com/dipneuste-au ... sequences/

[Janic]

what is the nature of the laws of nature?

(2'14 '') when we hear astrophysicists talk about the origins of the universe, when we talk about the big bang, the primordial phases of the universe, when we are a physicist, we always do it by invoking the laws physical laws which are believed to have been at work in those remote periods of the history of the universe, which assumes that these physical laws were already there, and even when speaking of the origins of the universe, this kind of primordial singularity to which we have associated a zero instant which would in fact be the explosive event which would have made everything that exists appear: matter, space, time, light, energy, we do it always by invoking physical laws as if the physical laws were already there, as if the legislative arsenal of the universe had preceded the universe; and when we say that, without it being always assumed, we suppose that the physical laws are transcendent in relation to the universe, that is to say that they are there BEFORE the universe, one could even say that they exist without even requiring the universe. And it has always seemed strange to me that we can talk about the origin of the universe, without specifying the status they have in relation to the universe itself. There is also an example that made me smile; one of Stephen Hawking's last books, each time on the last page he spoke of god, for example in "a brief history of time", he said at the conclusion of his string theory "soon, thanks to physicists, we will know the thought of god ”was the final sentence. It's unbelievable all the same because it supposes that god thinks; is it true that god thinks? it is a topic of discussion; does he think? in the sense that we give to this term, we humans ,. And then in a more recent book "the great design of the universe" he said quite another thing, on the last page always, He said, but finally the universe needed god to be created, the physical laws , in this case those of gravitation, were enough. It was a very astonishing sentence because in all the rest of the book, in the pages which preceded it, it developed the presentation of what one calls the theory M, theory which covers all the theories of superstring, and c 'is precisely a theory where gravitation is not postulated. We talk about principles like those of relativity, those of quantum physics and from these principles, and as a consequence of these principles, we are able to make Einstein's equations of gravity appear. So gravity is not first, it is consecutive from the principles posed by the theory. So to say that the laws of gravitation are causes of the universe is contradictory with the fact that they are themselves derived from principles more fundamental than themselves. On the other hand in the rest of the book, he defined god as being the creator of the universe, so if I associate the two ideas together: god is the creator of the universe and we no longer need god since gravitation is enough, I deduce that god is the laws of gravitation.
And so the subject of this evening is to wonder about this form of language flippancy that is ours, whether we are scientific or not, when we question the origin of universe or when we claim to describe it; there is something badly said, badly formulated, imprecise, so that the somewhat poor language that we use for this diffracts against a problem which is probably a mystery that no intellectual approach will allow to dissolve . (6'48 '')

The rest is no less interesting as on the use of the brain (8 'to 10')

[Christophe]

[Christophe]

Another mystery of life:

[izentrop]

Article reserved for subscribers ...

the animals discovered are very much alive. Researchers do not know what species they may be or how they feed. However, they do know that some sponges can live for over 10 years and some of them only feed once in a century!

This essential discovery for science, reveals that even in the most hostile environments, animal life remains possible! As long as there is life there is hope, right? https://www.neozone.org/science/decouve ... glaciaire/

[Christophe]

After the almost immortal Tardigrade: Science-and-Technology / tardigrade-the-extreme-strength-and-cryptobiosis-t12339.html

After the rejuvenating Medusa: Science-and-Technology / jellyfish-a-immortal-yet-more-strong-as-the-tardigrade-t12494.html

Here is the slug that grows back entirely ... after being (self) beheaded!

Japanese researchers have discovered a new characteristic of the sacoglossal slug: it has the ability to completely separate its head from its body, and entirely regenerate a new one.

https://www.courrierinternational.com/a ... r-un-corps



Applause!

[GuyGadeboisTheBack]

Bitch!
(It is Casasnovas who must be green with envy ...)

[Janic]

(It is Casasnovas who must be green with envy.

yeah, but if he pushes a slug body instead of the arm, its wearer is going to drool.
Whatever the myth of evolution will fix that in a few million years!

[GuyGadeboisTheBack]

(It is Casasnovas who must be green with envy.

yeah, but if he pushes a slug body instead of the arm, its wearer is going to drool.

But his wife will appreciate ...