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Life Sciences => Plant Sciences, Zoology & Evolution => Topic started by: bahesbesdk on 05/08/2009 02:08:54

Title: The evolutionary history of mosquito
Post by: bahesbesdk on 05/08/2009 02:08:54

Dear experts ,

I want to know some information about the the evolutionary history of mosquito .

I notice it live for a short time ( 2 weeks )

but I wonder because :

1- It equipped with an  anesthetic that helps it to stick its needle without making the human feel .

2- Equipped with a thermal system Works such as the infrared  reflects the color of human skin in the darkness to the  purple  color so that it sees us.

3- Equipped with a system to dilute the blood in order to move the blood in its very small hoses.

4- Equipped with a system to smell the human race .

5- produce a material to to prevent blood clots in order to cover itself while feeding.


all of that make me don't believe it evolved from another insect ,  Specially its age doesn't exceed two weeks ( or 15 days ) .

So , I ask you for information

thanks

Title: The evolutionary history of mosquito
Post by: acladlayperson on 24/03/2010 00:41:10

Quote from: bahesbesdk on 05/08/2009 02:08:54

Dear experts ,

I want to know some information about the the evolutionary history of mosquito .

I notice it live for a short time ( 2 weeks )

but I wonder because :

1- It equipped with an  anesthetic that helps it to stick its needle without making the human feel.

I'm not a expert but the victim is not always a human, or in some cases even mammalian.
http://www.scientificamerican.com/blog/60-second-science/post.cfm?id=mosquitoes-adapt-and-expand-diet-th-2009-06-01 (http://www.scientificamerican.com/blog/60-second-science/post.cfm?id=mosquitoes-adapt-and-expand-diet-th-2009-06-01)

Quote from: bahesbesdk on 05/08/2009 02:08:54

2- Equipped with a thermal system Works such as the infrared  reflects the color of human skin in the darkness to the  purple  color so that it sees us.

I don't know if they only attack reptiles when their blood temperature is high but I have heard that mozzies have thermal receptors on the tip of their antenna

Quote from: bahesbesdk on 05/08/2009 02:08:54

3- Equipped with a system to dilute the blood in order to move the blood in its very small hoses.

4- Equipped with a system to smell the human race .

5- produce a material to to prevent blood clots in order to cover itself while feeding.

I think point 3 & 5 are the same, like leeches they produce an anticoagulant to stop the blood clotting and enable them to drink their fill, I don't think point 4 if true.

Quote from: bahesbesdk on 05/08/2009 02:08:54

all of that make me don't believe it evolved from another insect ,  Specially its age doesn't exceed two weeks ( or 15 days ) .

well they certainly didn't evolve from bison, I suspect they evolved from a slightly less effective Mosquito type insect

Quote from: bahesbesdk on 05/08/2009 02:08:54

So , I ask you for information

thanks

An interesting observation of evolution in action I've made is that in a place like Singapore, where a significantly high proportion of the Mosquito victims will be human they are crazy fast, really hard to kill even with those brilliant electric rackets, but in a place like Queensland or Sri Lanka where the Mozzies probably attack mainly non-primate victims they are bigger, slower and easy to swot with a clap of the hands.

Question everything, good luck.