## <center>Human evolution doesn’t stop</center><br>
<div class = "text-justify">Bajau is an Indonesian population that gets food by fishing in apnea. Over the centuries, they have developed a spleen 50% larger than other Indonesian populations that do not live by fishing.</b></div>
<center>https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Philippinen_basilan_seezigeuner_ph04p69.jpg/800px-Philippinen_basilan_seezigeuner_ph04p69.jpg<sub>Imagine CC0 Creative Commons - [Source](https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Philippinen_basilan_seezigeuner_ph04p69.jpg/800px-Philippinen_basilan_seezigeuner_ph04p69.jpg)</sub></center>
<div class = "text-justify">
For the past 1000 years Bajau have immersed in apnea to fish. They can go up to 70 meters deep. A study on Cell shows that the ability of this population to dive for long periods of time is due to the larger size of the spleen. The surprising thing is that this feature is not simply due to the adaptation of the human body to the environment, but is written in the genes of this population. A perfect example of how evolution still acts today.
</b></div>
</div>
<center>[Article source](http://www.cell.com/cell/fulltext/S0092-8674(18)30386-6)</center>
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## <center>The ability of plants to repair their DNA.</center><br>
<div class="text-justify">Plants can repair their DNA much more efficiently than animals and bacteria. This is probably due to the prolonged exposure to sunlight.
</div>
<center>https://cdn.pixabay.com/photo/2016/07/01/01/32/gene-tree-1490270_960_720.png<sub>Imagine CC0 Creative Commons - [Source](https://cdn.pixabay.com/photo/2016/07/01/01/32/gene-tree-1490270_960_720.png)</sub></center>
<div class="text-justify">Increased exposure means greater absorption of ultraviolet rays, harmful, in the long term, for DNA. The secret to survive would be in a repair mechanism known as "excision", much faster in plants than other species. This discovery could provide useful indications for increasing crop yields.</div>
<div>
<center>[Article source](https://www.nature.com/articles/s41467-018-03922-5)</center>
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## <center>The shape of the water</center><br>
<div class="text-justify">A new discovery of Curiosity seems to suggest that processes that brought the surface of Mars to the current condition may be similar to those occurring on earth.</div>
<center>https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Mars_landscape_dry_wet.png/800px-Mars_landscape_dry_wet.png
<sub>Imagine CC0 Creative Commons - [Source](https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Mars_landscape_dry_wet.png/800px-Mars_landscape_dry_wet.png)</sub></center>
<div class="text-justify">Data and images collected by the probe have highlighted the presence of cracks in the Martian soil, compatible with the cracks created by the drying of muddy sediments. The hypothesis advanced by researchers is that the water present in that zone (maybe a lake) has evaporated in a similar way to what happens on Earth, leaving the muddy exposed to the atmosphere and, due to this, it has progressively dried and cracked.</div>
<center>[Article source](https://www.sciencedaily.com/releases/2018/04/180419172658.htm)</center>
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## <center>Post of the day</center>
<center>[Do you really know what a bipolar disorder is?](https://steemit.com/steemstem/@ideas-abstractas/do-we-really-know-what-a-bipolar-disorder-is) by @ideas-abstractas</center>
<div class=pull-left>
<center>https://steemitimages.com/0x0/https://cdn.pixabay.com/photo/2017/04/06/06/13/bipolarity-2207325_960_720.jpg
<sub>Imagine CC0 Creative Commons - [Source](https://steemit.com/steemstem/@ideas-abstractas/do-we-really-know-what-a-bipolar-disorder-is)</sub></center>
</div>
<div class=pull-right><br><br>
<div class="text-justify">Today @ideas-abstractas talks about bipolar disorder, a disorder that many people have to live with. What type do we know? What is it caused by? Is there a cure?</div>
</div>
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## <center>Keep in mind that for organizational reasons it’s necessary to use “steemstem” and “davinci-times” tags to be voted.</center>
<center>Greetings from the team @davinci.times:
@aboutcoolscience - @spaghettiscience - @rscalabrini</center>
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## <center>Se l’evoluzione umana non si ferma</center><br>
<div class = "text-justify">La Bajau è una popolazione indonesiana che si procura il cibo pescando in apnea. Nel corso dei secoli hanno sviluppato una milza più grande del 50% rispetto alle altre popolazioni indonesiane che non vivono di pesca. </b></div>
<center>https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Philippinen_basilan_seezigeuner_ph04p69.jpg/800px-Philippinen_basilan_seezigeuner_ph04p69.jpg <sub>Imagine CC0 Creative Commons - [Source](https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Philippinen_basilan_seezigeuner_ph04p69.jpg/800px-Philippinen_basilan_seezigeuner_ph04p69.jpg)</sub></center>
<div class = "text-justify">Da 1000 anni a questa parte i Bajau si immergono in apnea per pescare. Sono in grado di spingersi fino a 70 metri di profondità. Uno studio su Cell mostra che la capacità di questa popolazione di immergersi per lunghi periodi di tempo è dovuta alle maggiori dimensioni della milza. La cosa sorprendente è che questa caratteristica non è dovuta semplicemente all’adattamento del corpo umano all’ambiente, ma è scritta nei geni di questa popolazione. Un esempio perfetto di come l’evoluzione agisce ancora oggi.</b></div>
</div>
<center>[Article source](http://www.cell.com/cell/fulltext/S0092-8674(18)30386-6)</center>
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<div class=pull-left>
## <center>L’abilità delle piante di riparare il proprio DNA.</center><br>
<div class="text-justify">Le piante riescono a riparare il proprio DNA, in maniera molto più efficiente rispetto ad animali e batteri. Le cause sono da ricercare nella prolungata esposizione alla luce solare.</div><br>
<center>https://cdn.pixabay.com/photo/2016/07/01/01/32/gene-tree-1490270_960_720.png<sub>Imagine CC0 Creative Commons - [Source](https://cdn.pixabay.com/photo/2016/07/01/01/32/gene-tree-1490270_960_720.png)</sub></center>
<div class="text-justify">Maggiore esposizione significa maggior assorbimento di raggi ultravioletti, dannosi, a lungo termine, per il DNA. Il segreto per sopravvivere starebbe in un meccanismo di riparazione noto come “escissione”, molto più rapido nelle piante rispetto alle altre specie. Questa scoperta potrebbe fornire indicazioni utili per aumentare la resa dei raccolti. </div>
<div>
<center>[Article source](https://www.nature.com/articles/s41467-018-03922-5)</center>
</div>
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<div class=pull-right>
## <center>La forma dell’acqua</center><br>
<div class="text-justify">Una nuova scoperta di Curiosity sembra suggerire che i processi che hanno portato la superficie di Marte verso la condizione attuale potrebbero essere simili a quelli che si verificano sulla terra.</div>
<center>https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Mars_landscape_dry_wet.png/800px-Mars_landscape_dry_wet.png
<sub>Imagine CC0 Creative Commons - [Source](https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Mars_landscape_dry_wet.png/800px-Mars_landscape_dry_wet.png)</sub></center>
<div class="text-justify">I dati e le immagini raccolte dalla sonda hanno evidenziato la presenza di crepe nel suolo marziano, compatibili con delle spaccature create dall’essicamento di sedimenti fangosi. L’ipotesi avanzata dai ricercatori è che l’acqua presente in quella zone (forse un lago) sia evaporata in modo simile a quanto accade sulla terra, lasciando esposto il fondale fangoso che si è progressivamente seccato e spaccato..</div>
<center>[Article source](https://www.sciencedaily.com/releases/2018/04/180419172658.htm)</center>
</div>
</div>
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## <center>Post del giorno</center>
<center>[Do you really know what a bipolar disorder is?](https://steemit.com/steemstem/@ideas-abstractas/do-we-really-know-what-a-bipolar-disorder-is) by @ideas-abstractas</center>
<div class=pull-left>
<center>https://steemitimages.com/0x0/https://cdn.pixabay.com/photo/2017/04/06/06/13/bipolarity-2207325_960_720.jpg
<sub>Imagine CC0 Creative Commons - [Source](https://steemit.com/steemstem/@ideas-abstractas/do-we-really-know-what-a-bipolar-disorder-is)</sub></center>
</div>
<div class=pull-right><br><br>
<div class="text-justify">Oggi @ideas-abstractas ci parla del disturbo bipolare, una disordine con cui molte persone devono convivere. Quali forme conosciamo? Da cosa è causato? Esiste una cura?</div>
</div>
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## <center>Si ricorda che per motivi organizzativi è necessario utilizzare le tag “steemstem” e “davinci-times” per essere votati.</center>
<center>Saluti dal team @davinci.times:
@aboutcoolscience - @spaghettiscience - @rscalabrini</center>