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(Medical Xpress)   Organisms evolving to survive environmental changes, film at 11   (medicalxpress.com) divider line
    More: Obvious, Malaria, Anopheles malaria mosquitoes, team of researchers, pyrethroid insecticides, human activity, food sources, malaria mosquitoes, genetic diversity  
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428 clicks; posted to STEM » on 04 Dec 2020 at 8:36 PM (6 weeks ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



7 Comments     (+0 »)
 
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2020-12-04 10:00:40 PM  
Organisms don't actively evolve to do anything.
Organisms adapt to environmental changes. The changes due to adaptations over time are evolution.
 
2020-12-04 10:02:21 PM  
Organisms don't just evolve to survive environmental changes. Natural selection requires that the trait under consideration be:

1. Variable in the population
2. Heritable
3. Confer some type of advantage in the new environment

Also, organisms don't evolve, populations do. Populations can't just go to some desired new state because it would be beneficial. All the intermediate steps also have to confer benefit.

An example would be a short necked herbivore whose habitat is rapidly changing so that their current food is disappearing and the alternative food is 6 feet higher than they can reach. Even if neck length is variable and heritable in the population there may be no benefit to having a neck that is 4 feet longer than the ancestors since they would still starve to death long before selection could shift the population distribution of neck lengths to make the new food source available.

You can also have multiple traits that are being selected in different directions that contradict one another. In those cases you never get to the desired state because other selection pressures are at work.

The mechanism by which these mosquitos from different parts of the world can react so quickly and flexibly to pesticides is an important area of study and not really as obvious as the Fark headline suggests.
 
2020-12-05 12:46:32 AM  
Read that headline as "orgasms" - clicked link for hot tips on how to "meet friends" in quarantine, left confused and disappointed.
 
2020-12-05 3:06:57 AM  
Wait, would this count as a free pass to openly blame god in front of religious people?

"Look at what that farking god has done now, he's always pulling this shiat!"

What could they say? "Nah bro, that one wasn't him. He's on sick live. Corona."
 
2020-12-05 4:23:47 AM  

Rock Krenn: The mechanism by which these mosquitos from different parts of the world can react so quickly and flexibly to pesticides is an important area of study and not really as obvious as the Fark headline suggests.


I am both shocked and disappointed that a Fark headline failed to appreciate the complexity and nuance of an active topic of research.
 
2020-12-05 7:29:25 AM  

dyhchong: Wait, would this count as a free pass to openly blame god in front of religious people?

"Look at what that farking god has done now, he's always pulling this shiat!"

What could they say? "Nah bro, that one wasn't him. He's on sick live. Corona."


If one believes god controls everything then everything is a free pass to blame him openly.

Quite the theological and philosophical quandary.
 
2020-12-05 12:07:47 PM  

Tom Marvolo Bombadil: Rock Krenn: The mechanism by which these mosquitos from different parts of the world can react so quickly and flexibly to pesticides is an important area of study and not really as obvious as the Fark headline suggests.

I am both shocked and disappointed that a Fark headline failed to appreciate the complexity and nuance of an active topic of research.


Next you'll be telling me that people on Fark don't even read the article before commenting.

That's just crazy talk.
 
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