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Old 10-05-2012, 06:28 PM   #1
RastaMon
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Default Vegetarians are undermining the human race, and they're dumb.

Eating Meat Made Us Human, Suggests New Skull Fossil

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Fragments of a 1.5-million-year-old skull from a child recently found in Tanzania suggest early hominids weren't just occasional carnivores but regular meat eaters, researchers say.

The finding helps build the case that meat-eating helped the human lineage evolve large brains, scientists added.

"I know this will sound awful to vegetarians, but meat made us human," said researcher Manuel Domínguez-Rodrigo, an archaeologist at Complutense University in Madrid.

Past research suggested prehuman hominids such as australopithecines may have eaten some meat. However, it is the regular consumption of meat that often is thought to have triggered major changes in the human lineage, the genus Homo, with this high-energy food supporting large human brains.

Given its importance to human evolution, scientists want to learn when eating flesh became a regular activity. Stone tools dating back about 2.6 million years to Gona in Ethiopia are often considered the earliest signs of the human lineage butchering meat, and contentious evidence suggests butchery may have existed at least 3.4 million years ago. "Despite this ample evidence, some archaeologists still argue that meat was eaten sporadically and played a minor role in the diet of those hominins," Domínguez-Rodrigo said. (Hominins include humans and their relatives after they split from the chimpanzee lineage.)

Now shards of a child's skull found in Olduvai Gorge in Tanzania suggest the infant suffered from a form of malnutrition seen in meat-poor diets. This hints that meat-eating was normally a regular part of the human diet at the time.

The skull fragment is thought to belong to a child somewhat younger than 2. It remains unclear what hominin it belonged to — likely candidates include extinct human species such as Homo habilis or Homo erectus, or perhaps the "Nutcracker Man" Paranthropus boisei.

The kind of bone lesions the researchers saw in this fossil are known as porotic hyperostosis, which typically results from a lack of vitamins B9 and B12 in the diet. This kind of nutritional deficiency is most common at weaning, when children switch to solid foods. The researchers suggested this particular infant died because of lack of meat, which is rich in B-vitamins. Alternatively, if the child still depended on the mother for milk, it may have been the mother who lacked meat.

These findings suggest that "human brain development could not have existed without a diet based on regular consumption of meat," Domínguez-Rodrigo said. "Regular consumption of meat at that time implied that humans were hunters by then. Scavenging only rarely provides access to meat and is only feasible in African savannas on a seasonal basis."

However, there are other potential causes for porotic hyperostosis besides malnourishment, such as malaria or parasites. "Basically, anything that correlates with low red-cell count — either due to an infection of the blood or blood loss, or nutritional insufficiency — can cause the marrow of the skull to ramp up its production massively, causing the hyperostosis," said paleoanthropologist John Hawks at the University of Wisconsin, who did not take part in this study.

Still, Hawks noted that Domínguez-Rodrigo and his colleagues took alternative explanations for these bone lesions into account and were reasonably cautious in their interpretation of this data. "This is an interesting addition to what we know," Hawks told LiveScience.

Now, Domínguez-Rodrigo said, "research should try to find out how humans were acquiring meat regularly. What hunting strategies were used?"
The scientists detailed their findings online Oct. 3 in the journal PLoS ONE.
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Old 10-05-2012, 06:44 PM   #2
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bull****, everyone knows we evolved from mushroom lovin' monkeys
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Old 10-05-2012, 06:45 PM   #3
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ibThug
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Old 10-05-2012, 06:51 PM   #4
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ibThug
He's gonna get his panties in a wad.
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Old 10-05-2012, 07:00 PM   #5
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See the Red Lobster thread.
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Old 10-05-2012, 07:03 PM   #6
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They're also destroying our planet and killing innocent animals.
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Old 10-05-2012, 07:14 PM   #7
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just more evidence to show vegetarians are misguided. I'm cool with that
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Old 10-05-2012, 07:17 PM   #8
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the cuter the animal, the tastier the meat
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Old 10-05-2012, 07:18 PM   #9
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ibThug
His a veggiehead?

Shocker.
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Old 10-05-2012, 07:23 PM   #10
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His a veggiehead?

Shocker.
and doesn't drink or smoke anything.

he's as pure as they come.


but i bet he can eat some mean fish *wink* *wink*



wait, this isn't going too far, right?



i'll shut up now.

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Old 10-05-2012, 07:24 PM   #11
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and doesn't drink or smoke anything.

he's as pure as they come.


but i beat he can eat some mean fish *wink* *wink*



wait, this isn't going too far, right?



i'm shut up now.
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Old 10-05-2012, 07:25 PM   #12
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but i beat he
Mmm hmm.
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Old 10-05-2012, 07:26 PM   #13
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Mmm hmm.
His a veggiehead
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Old 10-05-2012, 07:27 PM   #14
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His a veggiehead
I'm beat beets! Radishes go too far?
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Old 10-05-2012, 07:27 PM   #15
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He just needs to eat more meat.
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Old 10-05-2012, 07:32 PM   #16
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the cuter the animal, the tastier the meat
Then explain bacon.
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Old 10-05-2012, 07:33 PM   #17
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Then explain bacon.
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Old 10-05-2012, 07:34 PM   #18
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Then explain bacon.


EDIT: sunnuva, that's what I get for using this ****ty slow macbook instead of my desktop PC.
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Old 10-05-2012, 07:35 PM   #19
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Don't **** with bacon. Ever.
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Old 10-05-2012, 07:35 PM   #20
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damn, i really ****ed that up


i'm so distracted right now. i was doing like 2 other things while typing that.
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Old 10-05-2012, 07:35 PM   #21
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damn, i really ****ed that up


i'm so distracted right now. i was doing like 2 other things while typing that.
His taco.
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Old 10-05-2012, 07:36 PM   #22
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Old 10-05-2012, 07:36 PM   #23
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His a veggiehead
Yoar radicchio
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Old 10-05-2012, 07:36 PM   #24
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I just think it's funny that we grabbed and rehosted the same pic to the same host. Let me guess, you googled 'cute pig'?
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Old 10-05-2012, 07:37 PM   #25
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I just think it's funny that we grabbed and rehosted the same pic to the same host. Let me guess, you googled 'cute pig'?
Actually I googled baby pig.

But yeah, funny we both imgur'd that at the same time.


Almost went with this one.
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