Re: Scientists Find Prehistoric Dwarf Skeleton
From: deowll (deowll_at_bellsouth.net)
Date: 11/02/04
- Next message: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Previous message: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Maybe in reply to: Marc Verhaegen: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Next in thread: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Messages sorted by: [ date ] [ thread ]
Date: Mon, 1 Nov 2004 19:02:49 -0600
"Market Theory" <markettheory@my-deja.com> wrote in message
news:4b1df56d.0410302021.28c06a2c@posting.google.com...
> unrestrained_hand@hotmail.com (Kermit) wrote in message
>> > 2) About the tiny brain size. Isn't this rather a blow to the bigger
>> > brains for greater intelligence idea? Henry Gee seems to agree. "The
>> > whole idea that you need a particular brain size to do anything
>> > intelligent is completely blown away by this find."
>>
>> It only blows away the idea that brain size is the whole story. Total
>> body size determines brain size to a significant degree. Women have
>> smaller braqins than men, but they have smaller bodies, too. The
>> proportion of cerebral cortex to total size may have more to do with
>> it than size alone.
>
>
> That doesn't make a great deal of sense. If I started eating more I
> could easily increase my total weight by 10% -- would that decrease my
> intelligence by 10% also?
>
> You may not have noticed that women's contributions to science have
> only been a small fraction of men's. Perhaps there's still something
> to be said for larger brains.
>
>> Also, some animals, such as the parrots and crows,
>> may have a stronger selective pressure to minimize size of brain, even
>> while they are getting smarter for other reasons. A 70 kg hominid
>> doesn't care much about a few extra grams of mass, but a flying
>> animal would.
>
> Doesn't the brain of the average 70kg hominid consume quite a large
> proportion of its energy budget? You'd think an animal that regularly
> had to cope with food shortages would be under some selective pressure
> not to have a brain that was gratuitously large and wasteful.
>
>>
>> How big were hobbit brains proportionally?
>>
>> >
>> > 3) If anecdotal stories about these 'Ebu Gogo' (the local name for
>> > these little people) in legends from Flores people can be linked to
>> > this species, H. foresiensis were hairy. This is certainly a new twist
>> > in the thinking on the evolution of nakedness in H. sapiens.
>> >
>> > Algis Kuliukas
>>
>> I suspect we lost our fur in order to cool off while traveling on foot
>> for long distances, especially at high speeds. These little guys, in
>> the jungle on an island, would not be marathoners, and either never
>> lost their fur or could quickly grow it back (evolve it again) if it
>> had a slight advantage for nonrunners. I assume it does, for every
>> mammalian species seems to have fur unless it has a clear need to be
>> nekkid (e.g. whales, humans, naked mole rats).
>
> The report I read said they were naked.
>
>
> --mt.
They think the have some hair that might be from one but they made the point
that they didn't make any claims about them having more hair than other
Homo. No data to support a claim either way.
- Next message: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Previous message: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Maybe in reply to: Marc Verhaegen: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Next in thread: deowll: "Re: Scientists Find Prehistoric Dwarf Skeleton"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
