DNA reveals polar bear's ancient origins

The accumulation of small heritable changes within populations over time.

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DNA reveals polar bear's ancient origins

#1  Postby DougC » Apr 20, 2012 1:10 am

http://www.bbc.co.uk/news/science-environment-17762196
B.B.C. article
The polar bear is much older than previously thought, according to new genetic evidence.
DNA studies suggest the Arctic predator split from its ancestor, the brown bear, about 600,000 years ago.
Previous estimates put the polar bear at about 150,000 years old, suggesting the mammal adapted very rapidly to Arctic life.
Conservationists say the new study, published in Science, has implications for bear conservation.

(Continues)
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Re: DNA reveals polar bear's ancient origins

#2  Postby james1v » Apr 20, 2012 1:27 am

I read an article a couple of months ago, that said Polar bears are interbreeding with brown bears...Again. :think:
"When humans yield up the privilege of thinking, the last shadow of liberty quits the horizon". Thomas Paine.
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Re: DNA reveals polar bear's ancient origins

#3  Postby DougC » Apr 20, 2012 1:30 am

james1v wrote:I read an article a couple of months ago, that said Polar bears are interbreeding with brown bears...Again. :think:

Obviously. :lol:

Where do you think Pandas come from. :naughty2:
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Re: DNA reveals polar bear's ancient origins

#4  Postby james1v » Apr 20, 2012 1:32 am

China, its the future.
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Re: DNA reveals polar bear's ancient origins

#5  Postby DougC » Apr 20, 2012 1:41 am

Yea, in my later years I can see myself pulling a rickshaw, with he guy in the back shouting-
"Pull fasta round-eye, pull fasta!"
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Re: DNA reveals polar bear's ancient origins

#6  Postby monkeyboy » Apr 20, 2012 1:43 am

DougC wrote:http://www.bbc.co.uk/news/science-environment-17762196
B.B.C. article
The polar bear is much older than previously thought, according to new genetic evidence.
DNA studies suggest the Arctic predator split from its ancestor, the brown bear, about 600,000 years ago.
Previous estimates put the polar bear at about 150,000 years old, suggesting the mammal adapted very rapidly to Arctic life.
Conservationists say the new study, published in Science, has implications for bear conservation.

(Continues)


What utter cock. If indeed they started to appear as white polar bears around 600,000 years ago, it must be because that's when they met man and got scared. That's why they changed so quickly, it's got nothing to do with adapting to arctic life and everything to do with scientific researchmade up bullshit from Byers.
The Bible is full of interest. It has noble poetry in it; and some clever fables; and some blood-drenched history; and some good morals; and a wealth of obscenity; and upwards of a thousand lies.
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Re: DNA reveals polar bear's ancient origins

#7  Postby Landrew » Apr 20, 2012 1:47 am

monkeyboy wrote:
DougC wrote:http://www.bbc.co.uk/news/science-environment-17762196
B.B.C. article
The polar bear is much older than previously thought, according to new genetic evidence.
DNA studies suggest the Arctic predator split from its ancestor, the brown bear, about 600,000 years ago.
Previous estimates put the polar bear at about 150,000 years old, suggesting the mammal adapted very rapidly to Arctic life.
Conservationists say the new study, published in Science, has implications for bear conservation.

(Continues)


What utter cock. If indeed they started to appear as white polar bears around 600,000 years ago, it must be because that's when they met man and got scared. That's why they changed so quickly, it's got nothing to do with adapting to arctic life and everything to do with scientific researchmade up bullshit from Byers.

You believe there were humans in the arctic 600,000 years ago?
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Re: DNA reveals polar bear's ancient origins

#8  Postby monkeyboy » Apr 20, 2012 1:51 am

Landrew wrote:
monkeyboy wrote:
DougC wrote:http://www.bbc.co.uk/news/science-environment-17762196
B.B.C. article
The polar bear is much older than previously thought, according to new genetic evidence.
DNA studies suggest the Arctic predator split from its ancestor, the brown bear, about 600,000 years ago.
Previous estimates put the polar bear at about 150,000 years old, suggesting the mammal adapted very rapidly to Arctic life.
Conservationists say the new study, published in Science, has implications for bear conservation.

(Continues)


What utter cock. If indeed they started to appear as white polar bears around 600,000 years ago, it must be because that's when they met man and got scared. That's why they changed so quickly, it's got nothing to do with adapting to arctic life and everything to do with scientific researchmade up bullshit from Byers.

You believe there were humans in the arctic 600,000 years ago?


Oops, backfiring lampoonery.
Of course I don't. The planet was only created about 6000 yrs ago if you listen to Byers.

I don't believe anty of that shit, I was being slightly sarcastic. Try searching for Byers and polar bears or hang around a bit and someone will likely post a link.
The Bible is full of interest. It has noble poetry in it; and some clever fables; and some blood-drenched history; and some good morals; and a wealth of obscenity; and upwards of a thousand lies.
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Re: DNA reveals polar bear's ancient origins

#9  Postby DougC » Apr 20, 2012 1:54 am

Landrew wrote:
monkeyboy wrote:
DougC wrote:http://www.bbc.co.uk/news/science-environment-17762196
B.B.C. article
The polar bear is much older than previously thought, according to new genetic evidence.
DNA studies suggest the Arctic predator split from its ancestor, the brown bear, about 600,000 years ago.
Previous estimates put the polar bear at about 150,000 years old, suggesting the mammal adapted very rapidly to Arctic life.
Conservationists say the new study, published in Science, has implications for bear conservation.

(Continues)


What utter cock. If indeed they started to appear as white polar bears around 600,000 years ago, it must be because that's when they met man and got scared. That's why they changed so quickly, it's got nothing to do with adapting to arctic life and everything to do with scientific researchmade up bullshit from Byers.

You believe there were humans in the arctic 600,000 years ago?

HUMANS IN THE ARCTIC 600,000 YEARS AGO!
EVERYONE knows thats where the aliens who planted all the 'fossil's' had there base. :shifty:
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