Science news of the day thread.

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Re: Science news of the day thread.

Post by Hermit » Mon Aug 15, 2022 1:58 pm

macdoc wrote:
Mon Aug 15, 2022 9:05 am
We are all evolved from Homo Erectus, which lived in Southern Africa, my cousin.
the That is not beginning of humans and what Africa has to do with the original article about human arrival in the Americas is beyond me. :roll:
You seem a little confused. We are all evolved from Homo Erectus.

Cladogram of Homo erectus
Image

Certainly not from Ardipithecus ramidus. They were a dead end and none of their remains have have ever been found outside the African continent.

Phylogeny of Hominina/Australopithecina
Image

What are you even attempting to argue and where would you place the beginning of humans? It all depends on what criteria one stipulates, doesn't it? How far do you want to go down the phylogenetic tree? One could argue that it is the point at which microorganisms first appeared somewhere between 3.77 and 4.41 billion years ago.
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Re: Science news of the day thread.

Post by Svartalf » Mon Aug 15, 2022 5:23 pm

Thanks Hermit, I always thought homo habilis were on our ancestral line.

BTW, the 'Olduvai Hominids' clade, that includes cousin Lucy, doesn't it?
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Re: Science news of the day thread.

Post by macdoc » Mon Aug 15, 2022 7:26 pm

Yeah and Ardi is older than Lucy....by a million years and meets the current criteria for human ancestor....you use the criteria the anthropologists use and in Ardi's case spent a decade proving.
It WAS Lucy, it is now Ardi and maybe one more even earlier.
What is so hard to understand about this?
The female skeleton, nicknamed Ardi, is 4.4 million years old, 1.2 million years older than the skeleton of Lucy, or Australopithecus afarensis, the most famous and, until now, the earliest hominid skeleton ever found.
Chimps are not our ancestors nor are other great apes, they evolved in parallel from a common ancestor.

and what this has to do with human presence in Americas is an enduring mystery only the perp understands.....or maybe not. :coffee:
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Re: Science news of the day thread.

Post by Svartalf » Mon Aug 15, 2022 7:35 pm

I think it's because the cladistic analysis is very restrictive as to what constitutes an 'ancestor' and all these delightful ladies have been relegated to the status of distant cousins for having deviated from the straight line of common descent.
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Re: Science news of the day thread.

Post by macdoc » Tue Aug 16, 2022 12:03 am

what straight line of common descent??. It's a bush....lots of branches...mostly dessicated.....Ardi and others revealed in searching for a common ancestor with human characteristics. Bipedal etc. Ardi looks like link between arboreal and plains living ...walked upright ( did not waddle like apes ) but with grasping ability on foot for climbing. Change in pelvis.
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Re: Science news of the day thread.

Post by Brian Peacock » Tue Aug 16, 2022 12:43 am

"Change in pelvis" is a good name for a band.
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Re: Science news of the day thread.

Post by Brian Peacock » Wed Aug 17, 2022 7:51 am

Rationalia relies on voluntary donations. There is no obligation of course, but if you value this place and want to see it continue please consider making a small donation towards the forum's running costs.
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"It isn't necessary to imagine the world ending in fire or ice.
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"This is how humanity ends; bickering over the irrelevant."
Clinton Huxley » 21 Jun 2012 » 14:10:36 GMT
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Re: Science news of the day thread.

Post by Tero » Wed Aug 17, 2022 11:12 am

Farming with ants, instead of neonicotinoids
https://www.theguardian.com/environment ... -study-aoe
https://esapolitics.blogspot.com
http://esabirdsne.blogspot.com/
Said Peter...what you're requesting just isn't my bag
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And our hands they are many and we'd be of one voice
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Our case for survival before it's too late

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Turn stone to bread right away...

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Re: Science news of the day thread.

Post by rainbow » Wed Aug 17, 2022 11:54 am

Tero wrote:
Wed Aug 17, 2022 11:12 am
Farming with ants, instead of neonicotinoids
https://www.theguardian.com/environment ... -study-aoe
Cool except for neonicotinoids don't reproduce and invade where they are not wanted.
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Re: Science news of the day thread.

Post by Tero » Wed Aug 17, 2022 4:32 pm

You never know, with Monsanto.
https://esapolitics.blogspot.com
http://esabirdsne.blogspot.com/
Said Peter...what you're requesting just isn't my bag
Said Daemon, who's sorry too, but y'see we didn't have no choice
And our hands they are many and we'd be of one voice
We've come all the way from Wigan to get up and state
Our case for survival before it's too late

Turn stone to bread, said Daemon Duncetan
Turn stone to bread right away...

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Re: Science news of the day thread.

Post by Tero » Wed Aug 17, 2022 4:32 pm

In fact, Monsanto could invent ants that make neonicotinoids.
https://esapolitics.blogspot.com
http://esabirdsne.blogspot.com/
Said Peter...what you're requesting just isn't my bag
Said Daemon, who's sorry too, but y'see we didn't have no choice
And our hands they are many and we'd be of one voice
We've come all the way from Wigan to get up and state
Our case for survival before it's too late

Turn stone to bread, said Daemon Duncetan
Turn stone to bread right away...

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Re: Science news of the day thread.

Post by macdoc » Wed Aug 17, 2022 10:55 pm

The Jetson vehicle arrives

Well finally the Jetson's Flying Car almost realized.... certified too. Like the motorcycle twist as well.
Image

https://newatlas.com/aircraft/samson-sw ... -approval/
I'd be well qualified for this except for the money part. :sulk:
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Re: Science news of the day thread.

Post by macdoc » Wed Aug 17, 2022 11:23 pm

Really enjoyable book and learned a hell of a lot.
Image
From a dazzling young palaeontologist and prodigiously talented writer comes the Earth as we've never seen it before

What would it be like to experience the ancient landscapes of the past as we experience the reality of nature today? To actually visit the Jurassic or Cambrian worlds, to wander among their spectacular flora and fauna, to witness their continental shifts? In Otherlands, the multi-talented palaeontologist Thomas Halliday gives us a breath-taking up close encounter with worlds that are normally unimaginably distant.

Journeying backwards in time from the most recent Ice Age to the dawn of complex life itself, and across all seven continents, Halliday immerses us in sixteen lost ecosystems, each one rendered with a novelist's eye for detail and drama. Every description - whether the colour of a beetle's shell, the shambling rhythm of pterosaurs in flight or the lingering smell of sulphur in the air - is grounded in fact. We visit the birthplace of humanity on the shores of the great lake Lonyumun, in Pliocene-era Kenya; in the Miocene, we hear the crashing of the highest waterfall the world has ever known as it fills the evaporated Mediterranean Sea; we encounter forests of giant fungus nine metres tall in Devonian-era Scotland; and we gaze at the light of a full and enormous moon in the Ediacaran sky, when life hasn't yet reached land.

To read Otherlands is to time travel, to see the last 550 million years not as an endless expanse of unfathomable time, but as a series of worlds, simultaneously fantastical and familiar.
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Re: Science news of the day thread.

Post by Brian Peacock » Thu Aug 18, 2022 1:04 pm

Sounds rather like a contemporary rerendering of Gould's Wonderful Life.
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"It isn't necessary to imagine the world ending in fire or ice.
There are two other possibilities: one is paperwork, and the other is nostalgia."

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"This is how humanity ends; bickering over the irrelevant."
Clinton Huxley » 21 Jun 2012 » 14:10:36 GMT
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Re: Science news of the day thread.

Post by rainbow » Thu Aug 18, 2022 2:38 pm

Tero wrote:
Wed Aug 17, 2022 4:32 pm
You never know, with Monsanto.
Monsanto?

A really cool place: https://porto-north-portugal.com/porto- ... guide.html
I call bullshit - Alfred E Einstein
BArF−4

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