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Pheromones

pheromones

chemical substances which, when secreted by an individual into the environment, cause specific reactions in other individuals, usually of the same species. The substances relate only to multicellular organisms. This includes kairomones. Allomones are repellent pheromones.


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Re: Can you think of an evolutionary reason for this?

... the whole topic is extremely interesting as there is definitely some link whether it be environmental or genetic, I am hanging my money on the pheromones theory as to me that is what adds up, it just amazes me at how many of these little hidden biological triggers are actually hardwired into ...

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by vk4vfx
Mon Oct 01, 2012 9:42 pm
 
Forum: Evolution
Topic: Can you think of an evolutionary reason for this?
Replies: 8
Views: 2179

Can you think of an evolutionary reason for this?

... thinking and hopefully someone can answer it as I would like to know also. All that I can think of is it would definitely be something to do with pheromones, really it was not that long ago scientists discovered VNO which are very tiny receptors in our noses, you have heard the term "the ...

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by vk4vfx
Fri Sep 28, 2012 11:35 am
 
Forum: Evolution
Topic: Can you think of an evolutionary reason for this?
Replies: 8
Views: 2179

Plants DO talk !

They are called semiochemicals, pheromones, etc. Read this: http://www.linv.org/images/about_pdf/Cognitive%20processing%202008.pdf http://www.plantphysiol.org/content/111/2/487.full.pdf http://www.pnas.org/content/87/19/7713.full.pdf

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by Cat
Fri Sep 21, 2012 2:36 am
 
Forum: Botany Discussion
Topic: Plants DO talk !
Replies: 17
Views: 9415

Female fight

... into rut, but many are willing and able to mate all the time, while unable to do so unless they can find a female in heat. Since she gives off pheromones at that time, many males will come to her, thus they fight. Also testosterones make one testy, ha ha, and thus more aggressive in general, ...

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by Wallyanna
Wed May 09, 2012 5:20 pm
 
Forum: Zoology Discussion
Topic: Female fight
Replies: 7
Views: 1720

Re:

... read somewhere that horses sweat as a means to cool down. Most mammals have few sweat glands and they are probably for other purposes (secreting pheromones or other such substances). Dogs and cats (and even crows!) pant if they are getting too hot. Kangaroos lick their arms to cool themselves ...

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by biohazard
Thu Jan 26, 2012 11:35 am
 
Forum: Physiology
Topic: Thermal insulation by adipose tissue
Replies: 6
Views: 3326
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