Evolution of multicellularity observed.

[USincognito]

<i>De novo</i> origins of multicellularity in response to predation

I wonder how Creationists will spin/twist this or where they will move the goalposts.

 

[SummerMadness]

We all know the answer...

 

[Shemjaza]

I suspect: “But it’s still goo kind.”

Remember, that every beetle and spider can be creepy-crawler kind and chimps, gorillas and orangutans are ape kind, but humans and Homo erectus are totally separate animals.

 

[Romans 8]

Reading the article is a per-requisite for the thread? I hope you brought a book to read in here, because it's going to be quiet. Just make an easy thread such as evolution vs creation. Most people prefer simplicity.

 

[46AND2]

Reading the article is a per-requisite for the thread? I hope you brought a book to read in here, because it's going to be quiet. Just make an easy thread such as evolution vs creation. Most people prefer simplicity.

Congratulations, in one short paragraph, you just explained why creationists reject evolution.

 

[Romans 8]

Congratulations, in one short paragraph, you just explained why creationists reject evolution.

I set myself up, I know. But it's true, we're mostly lazy on here.

 

[USincognito]

Reading the article is a per-requisite for the thread? I hope you brought a book to read in here, because it's going to be quiet. Just make an easy thread such as evolution vs creation. Most people prefer simplicity.

Here'e the summation paragraph from the introduction.

In this study, we present experiments in which we used the ciliate predator Paramecium tetraurelia to select for the de novo evolution of multicellularity in outcrossed populations of C. reinhardtii.* We describe the heritable multicellular life cycles that evolved and compare them to the ancestral, unicellular life cycle. In addition, we show that the evolved multicellular life cycles are stable over thousands of asexual generations in the absence of predators. Comparative assays show that the evolved multicellular phenotypes provide a fitness advantage over unicellular algae in the presence of predators. Because C. reinhardtiihas no multicellular ancestors, these experiments represent a completely novel origin of obligate multicellularity14,15.​

* a species of green algae.

 

[juvenissun]

Here'e the summation paragraph from the introduction.

In this study, we present experiments in which we used the ciliate predator Paramecium tetraurelia to select for the de novo evolution of multicellularity in outcrossed populations of C. reinhardtii.* We describe the heritable multicellular life cycles that evolved and compare them to the ancestral, unicellular life cycle. In addition, we show that the evolved multicellular life cycles are stable over thousands of asexual generations in the absence of predators. Comparative assays show that the evolved multicellular phenotypes provide a fitness advantage over unicellular algae in the presence of predators. Because C. reinhardtiihas no multicellular ancestors, these experiments represent a completely novel origin of obligate multicellularity14,15.​

* a species of green algae.

Let me translate:

Compare A and B, A is more advanced and more adaptive.
So, B evolved to A.

Is that right? What else does it say?

 

[essentialsaltes]

Let me translate:

Compare A and B, A is more advanced and more adaptive.
So, B evolved to A.

Is that right? What else does it say?

Start here: "we present experiments"

 

[usexpat97]

These experiments have been around for awhile. This one, while all fine and good, doesn't prove much. Even water forms multi-molecular structures when it freezes. Animals then come along and drink the unfrozen water, but leave the ice behind. Do we say, then, that water evolved?

 

[Rubiks]

These experiments have been around for awhile. This one, while all fine and good, doesn't prove much. Even water forms multi-molecular structures when it freezes. Animals then come along and drink the unfrozen water, but leave the ice behind. Do we say, then, that water evolved?

Water isn't alive.

 

[Shemjaza]

These experiments have been around for awhile. This one, while all fine and good, doesn't prove much. Even water forms multi-molecular structures when it freezes. Animals then come along and drink the unfrozen water, but leave the ice behind. Do we say, then, that water evolved?

Formally independent cells adapting to living as a communal organism is very different from ice crystals forming at bellow zero temperatures.

That is unless you would also say, “Humans don’t prove much, they move around and make noises, but after about 70 years they just fall over and turn to mush.”

 

[juvenissun]

Start here: "we present experiments"

To compare CAN be an experiment.

 

[Shemjaza]

To compare CAN be an experiment.

Juvenissun, this is another of those times where you need to go read the article to have useful comments on its content.

 

[essentialsaltes]

To compare CAN be an experiment.

Is it in this case? You only need to read the summary USincognito quoted.

Start here: "we present experiments"

 

[usexpat97]

Water isn't alive

Your point? Musk oxen form in groups to fight predation, as do sea lions and mongoose. Wolves, whales, and orcas hunt in packs. You counter that by saying these creatures have already evolved, and are thus beyond the scope of this discussion. Yet I point out something that is not even organic, and even that is "very different", too?

What does this experiment prove? That now algae has done it. Very little.

 

[Shemjaza]

Your point? Musk oxen form in groups to fight predation, as do sea lions and mongoose. Wolves, whales, and orcas hunt in packs. You counter that by saying these creatures have already evolved, and are thus beyond the scope of this discussion. Yet I point out something that is not even organic, and even that is "very different", too?

What does this experiment prove? That now algae has done it. Very little.

Something as simple as individual separate cells adapting to function communally is an example that demonstrates that the ancient original single celled life on Earth could have become multi celled colony life forms.

It's the sort of thing that people around here tend to say is impossible without divine intervention.

 

[Ophiolite]

Your point? Musk oxen form in groups to fight predation, as do sea lions and mongoose. Wolves, whales, and orcas hunt in packs. You counter that by saying these creatures have already evolved, and are thus beyond the scope of this discussion. Yet I point out something that is not even organic, and even that is "very different", too?

What does this experiment prove? That now algae has done it. Very little.

It proves nothing. It demonstrates yet another example of emerging properties as a natural result of natural laws that control all aspects of the universe. Thank you for providing examples from the organic and inorganic world. (See, if you had proper gunlaws in the states you wouldn't have shot yourself in the foot. )

 

[juvenissun]

Is it in this case? You only need to read the summary USincognito quoted.

Start here: "we present experiments"

Is the purpose of the experiment on the comparison of A and B?
If not, what is it? Don't be ridiculous if you think it is about B evolved to A.

 

[Shemjaza]

Is the purpose of the experiment on the comparison of A and B?
If not, what is it? Don't be ridiculous if you think it is about B evolved to A.

Juve, read the article. If you don't understand something specific then you can ask questions to get some clarity.

Trying to short circuit the content based on some pseudo logic derived from what you suspect the article contains is a waste of your, and everyone else's time.