Login

Join for Free!
17711 members


Caring about appearances.

Discussion of everything related to the Theory of Evolution.

Moderator: BioTeam

Caring about appearances.

Postby kclo4x on Fri Oct 05, 2007 3:08 am

Alright, we all know that everyone cares about how they look, what they think, what other people think etc.

First off, is this simply because seeming the best increases chances of getting a mate? or is there something more to it?

Also, if that is true do other animals have the trait?

For example: peacocks with bigger and brighter feathers are more attractive to pea hens.

And how simple of organism can have this sense of ability to "realize" one mate is healthier, or better then another?


And the MOST important question i have here is: if the environment chances does the attractiveness of the mate?

An example would be say, i am breeding pill bugs to become yellow. if i change the environment to be yellow, the pill bugs *if they have any sort of cognition that would be required for selecting a mate, that is* would be more attracted to the ones with the most yellow, since they blend in better?
kclo4x
Death Adder
Death Adder
 
Posts: 66
Joined: Sun Aug 12, 2007 10:04 am

Postby mith on Fri Oct 05, 2007 4:08 am

I think it requires a lot more brain cells to choose. Plus given that mating has such low costs in these simpler life forms, there might not be much incentive to pick healthier or unhealthier.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 4629
Joined: Thu Jan 20, 2005 8:14 pm
Location: Berkeley, CA

Postby alextemplet on Fri Oct 05, 2007 4:29 am

It's possible, I suppose. A lot of the traits we consider attractive (intelligence, physical strength, agility, etc.) would've been very useful to survive in the wild. A lot of tribal initiation rituals are designed to test a youth's ability to survive and be able to hunt or fight, both useful skills. I suppose it's possible that, in an environment requiring more speed to survive than strength, or vice-versa, people might be able to recognize this and choose mates with the necessary qualities.
Generally speaking, the more people talk about "being saved," the further away they actually are from true salvation.

~Alex
#2 Total Post Count
User avatar
alextemplet
King Cobra
King Cobra
 
Posts: 5169
Joined: Fri Dec 23, 2005 4:50 pm
Location: South Louisiana (aka Cajun Country)

Postby kotoreru on Fri Oct 05, 2007 2:24 pm

i am breeding pill bugs to become yellow. if i change the environment to be yellow, the pill bugs *if they have any sort of cognition that would be required for selecting a mate, that is* would be more attracted to the ones with the most yellow, since they blend in better?


Do pill bugs choose mates, then? I doubt it's through visual cues somehow. To get the kind of change in allele frequencies you want, you need a selective pressure e.g. a predator that has a harder time finding yellow pill bugs.
User avatar
kotoreru
Coral
Coral
 
Posts: 401
Joined: Thu Apr 12, 2007 9:25 pm
Location: London

Postby mith on Sat Oct 06, 2007 2:27 am

Or artificial selection
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 4629
Joined: Thu Jan 20, 2005 8:14 pm
Location: Berkeley, CA

Postby kclo4x on Tue Oct 09, 2007 9:54 pm

Yeah I'm just breeding them like you would with a dog or something.
but i was wondering if attractiveness could be changed by environment.

i didn't really think a pill bug could, but the idea is interesting.
i don't think Pill bugs can see in color not like we can.
they run away from a black light just as fast as a normal light... kinda interesting... maybe their spectrum of visible light is greater.
kclo4x
Death Adder
Death Adder
 
Posts: 66
Joined: Sun Aug 12, 2007 10:04 am


Postby AstusAleator on Wed Oct 10, 2007 12:29 am

Just a thought I had while reading this:
Someone mentioned the "costs" of mating/reproduction. This made me think of the relatively high "cost" or difficulty that humans have with child birth and rearing. It would make sense that a female would select a male that looks like he can support her through the birthing and rearing processes. But then again, perhaps we evolved in settings where birthing mothers grouped in their own female cohort, or the elderly provided that support... just a random thought.
"Humanity's behavior suggests intelligence is an evolutionary dead end." - Wayne M. Schmidt
User avatar
AstusAleator
King Cobra
King Cobra
 
Posts: 845
Joined: Tue Jan 24, 2006 8:51 pm
Location: Oregon, USA

Postby kclo4x on Wed Oct 10, 2007 4:37 am

I like that idea.

Hmmm, interesting
i wonder if evolution would cause females to be more trust worthy of each other, and men less trust worthy of each other.

Men would have to appear the best, dominate, and other stuffs along those lines.
while if you were a female, and there were female cohorts, then females would need to be more trusting with each other.
maybe even males find females more trust worthy because of that.
well eh idk at least physically, not mentally
kclo4x
Death Adder
Death Adder
 
Posts: 66
Joined: Sun Aug 12, 2007 10:04 am


Return to Evolution

Who is online

Users browsing this forum: No registered users and 0 guests