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kortanekev

How Animals Communicate Via Pheromones » American Scientist - 0 views

www.americanscientist.org/...2

animals pheromones scientist science research communication

shared by kortanekev on 27 Nov 16 - No Cached
  • Pheromones are chemical signals that have evolved for communication between members of the same species. A pheromone signal elicits a specific reaction in the receiver, for example, a stereotyped behavior
  • kortanekev on 27 Nov 16
     
    This article depicts an efficient and accurate form of communication that is not dynamic or abstract in any way like the languages we use. This form is pheromones which are chemicals that animals have evolved to secrete, receive, and respond to instinctively. Despite being a process that we can't control, it does serve as an effective communication that does not depend on our subjective deciphering.  (Evie 11/27/16)
grayton downing

Weird Science! Don't mount so fast! That bug could be a boy | Science News - 0 views

www.sciencenews.org/...mount-so-fast-bug-could-be-boy

science research boy

shared by grayton downing on 26 Oct 13 - No Cached
  • There are many animal species out there that exhibit same-sex mating behavior.
  • When it comes to bugs, is it intentional same-sex behavior? Or is it all a mistake?
  • They tried to tease out why same-sex sexual behavior might occur in insects. What are the benefits? The potential downsides? And from that, to hypothesize why it might occur.
  • ...5 more annotations...
  • Why does it happen? Some say that by mating with a “passive” male and transferring sperm, that sperm then gets passed over to the female when the passive male mates. Sneaky. But does it really happen?
  • If it is mistaken identity, as the authors hypothesize, it certainly happens a lot. Why could you get so many cases of false identity
  • In many observed cases, the males being mated with attempted to fight off the attackers. In others, they may emit pheromones of their own that let the males know that nope, this isn’t what you’re looking for. In some cases, the targeted male just runs away. But it’s hard to tell how often this happens, as no one has ever really studied it.
  • t very few of the hypotheses have been tested. Most of the insect orders in which male same-sex behavior has been documented have at most one or two studies. And of those, most are not focused on same-sex mating behavior; they just list it as a by-product
  • So it would be interesting to test these hypotheses, and to figure out what is really driving the guy-on-guy bug action. Is it pheromones? Desperation? Safety in numbers? Or something else? Science in the future will have to tell. 
summertyler

The Chemistry (Literally) of Social Interaction - 0 views

www.nytimes.com/...16conv.html

chemistry science biology sociology research

shared by summertyler on 07 Mar 15 - No Cached
  • experimental psychologist
  • research on how social interactions affect biology in humans and animals.
  • t women living together in a Wellesley College dormitory tended to menstruate at the same time.
  • ...7 more annotations...
  • chemical communication between humans in laboratory experiments
  • Whether pheromones play a role in human life outside the lab remains unknown. In animals pheromones affect the whole panoply of behavior - mating, aggression and fear.
  • rats that fear change have shorter lives than their more flexible counterparts, and that social isolation can also affect the longevity of rodents
  • the social and psychological world changes the fundamental mechanisms of biology, and vice versa
  • I've tried to situate biology in a rich social and psychological context and make it simple.
  • the chemosignal. Molecules produced by a person or animal that can change behaviors of others, even though they are not detected as an odor.
  • for two months, we exposed nonlactating women to this breast-feeding compound, which is found naturally in nursing mothers and infants. Women with regular sex partners reported a 24 percent increase in sexual desire; those without partners increased their sexual fantasies by 17 percent
  • summertyler on 07 Mar 15
     
    Research on how social interactions affect biology in humans and animals
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