[ExI] IQ and beauty
johnkclark at gmail.com
Sat Oct 10 21:16:54 UTC 2015
On Sat, Oct 10, 2015 Dan TheBookMan <danust2012 at gmail.com> wrote:
> this is not to deny sexual selection.
Then that is all that's needed, everything else follows logically. If a
attribute makes a individual more attractive sexually but in all other
areas of life (including the ability to live long enough to reproduce) that
then the species is heading for trouble unless the female alters her
felling about what is attractive and what is not.
> It remains to be proved in this example that the enormous antlers were
> disadvantageous in the environment they evolved under.
Perhaps I missed it but I can't recall anyone suggesting that clumsy heavy
enormous antlers or gigantic gaudy spectacularly un-aerodynamic tails have
any function other than finding a mate.
>> I personally have seen very few because the last Irish Elk died
>> 7700 years ago and I was just a kid at the time. However it is
>> very common for modern females to rebuff the advances of modern
>> males and remained virgins, so I think it is reasonable to hypothesize
>> that things may have been no different 7700 years ago.
> While I'm no expert on elk, I'd like to know where you got that from? What
> little I've read and seen on elks leads me to believe, perhaps wrongly,
> that the males compete with each other for females
I'm sure they do, but that would still be a form of sexual selection.
> that the antlers are used in male to male competition.
I'm sure antlers are used in male in male to male fighting, but if that
was there primary function antlers would be shaped more like a spear and
less like a large blunt open hand. Antlers are like padded shoulders in a
man's suit, they look nice but don't add any real muscle.
The horn on a rhinoceros is much smaller and less dramatic than the antlers
on a Irish Elk, but it makes for a far better weapon. Apparently the female
rhinoceros has a better rule of thumb to ascertain fitness in the male than
the female Irish Elk does. I'd say the same thing about the horns on a
Triceratops, they could do more than just look nice.
John K Clark
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