Shadow - Of course it would have taken you 30 seconds to find that study yourself if you had actually been interested in the answer rather than yet another failed "gotcha".
Posts by cofty
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87Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
..models that suggest humans started walking upright as a means to cool off aren’t looking at the whole picture because in addition to the metabolic heat generated, the cooling effect gained in losing body hair would be much more profound in a person walking upright, than would be the case for one who remained crouching.
Thus, they argue, it was only after hominins started walking upright that they began losing their fur, though they do agree that the latter change came about as a means of keeping cooler.
Read more at: http://phys.org/news/2011-12-early-humans-lost-fur-bipedalism.html#jCp
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
You didn't read it. The answer is really simple.
You are being obtuse - as usual.
Do lions and apes walk upright across the Savannah during the day? What happens if you do that? Does fur keep you cool in the sun or make you overheat?
It's not a matter of opinion, it's about facts.
Read the link.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
Read the underlined bit again. Slowly.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
cofty, the wait for 2 is over.
Really? You think this is a hole in evolution? A schoolchild could tell you what selection pressures transformed us into "naked apes".
Try harder.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
cofty, your link does nothing to address the question
Yes it does. It provides proof that Homo sapiens descend from very hairy ancestors who had a arectores pilorum muscle attached to every hair follicle.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
Fur is beneficial for survival. Evolution stripped humans of this advantage?
No it didn't. The advantage of any feature depends on the specific conditions which change over time. Upright walking hominids who left the trees and walked on the African Savanna needed to keep cool.
A more interesting question is why we kept some hair.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
Shadow - 8 months ago you started a thread called Evolution Hole #1 which turned out not to be about evolution at all.
Still waiting on number 2.
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87
Evolution Gap - Where's the Fur?
by shadow inevolution paints human ancestors covered with fur.
fur has several benefits as stated by britannica "the pelts of fur-bearing animals are called true furs when they consist of two elements: a dense undercoat, called ground hair, and longer hairs, extending beyond that layer, called guard hair.
the principal function of ground hair is to maintain the animal’s body temperature; that of guard hair is to protect the underlying fur and skin and to shed rain or snow.".
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cofty
Goosebumps are the evidence of your hairy ancestry...