March 29, 2024, 08:54:15 am
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
Forever
Login with username, password and session length
News
: ARE Search For Atlantis 2007 Results
http://mysterious-america.net/bermudatriangle0.html
Home
Help
Arcade
Gallery
Links
Staff List
Calendar
Login
Register
Why Did Neanderthals Have Such Big Noses?
Atlantis Online
>
Forum
>
Archaeology & Anthropology
>
Archaeological News
>
Why Did Neanderthals Have Such Big Noses?
Pages: [
1
]
Go Down
« previous
next »
Print
Author
Topic: Why Did Neanderthals Have Such Big Noses? (Read 208 times)
0 Members and 49 Guests are viewing this topic.
Bianca
Superhero Member
Posts: 41646
Why Did Neanderthals Have Such Big Noses?
«
on:
October 30, 2008, 07:27:26 pm »
Museum recreation of a Neanderthal
(Image: Wikimedia Commons)
Why did Neanderthals have such big noses?
11:28 27 October 2008
NewScientist.com news service
Ewen Callaway
The Neanderthal's huge nose is a fluke of evolution, not some grand adaptation, research suggests.
The Neanderthal nose has been a matter of befuddlement for anthropologists, who point out that modern cold-adapted humans have narrow noses to moisten and warm air as it enters the lung, and reduce water and heat loss during exhalation.
Big noses tend to be found in people whose ancestors evolved in tropical climates, where a large nasal opening helps cool the body.
But Neanderthals go against this trend, says Tim Weaver, a palaeoanthropologist at the University of California, Davis, who was not involved in the study.
"They were living in the glacial environment of Europe, colder than it is today, for most of the time," he says. "So it's sort of been an anomaly. Why do they have these wide nasal apertures?"
Jaw link?
The traditional answer has been that Neanderthals have a big nose because they have a big mouth and a wide jaw, useful for ripping apart tough food, says Nathan Holton, a paleoanthropologist at the University of Iowa.
"People have tried to explain the Neanderthal face as designed to produce high levels of bite force and trying to explain the rest of a wide nasal breath as part of a larger tend," he says.
To put this theory to the test, he and University of Iowa colleague Robert Franciscus, measured facial dimensions in dozens of Neanderthals and humans, ancient and modern.
By correlating changes in the size of nose width, the distance between canine teeth, and other features, the researchers could determine whether or not big mouths went with big noses.
Holton and Franciscus found a slight link between nose and mouth, but not enough to explain Neanderthal noses. However, another measurement – the degree to which the face juts forward – seemed a better match for nose width, Houlton says.
«
Last Edit: October 30, 2008, 07:36:39 pm by Bianca
»
Report Spam
Logged
Your mind understands what you have been taught; your heart what is true.
Bianca
Superhero Member
Posts: 41646
Re: Why Did Neanderthals Have Such Big Noses?
«
Reply #1
on:
October 30, 2008, 07:29:18 pm »
Chance changes
"If you want to change the breadth of the nose, you change the degree of facial projection," he says.
Measurements in modern humans support this theory. By age 12, a child's mouth has grown to its adult size, whereas the nose and facial projection continue to grow well into teenage years, Holton says. Recent research suggests that Neanderthals matured at the same rate as humans.
Fortunately for Neanderthals, their inner noses were narrower than the openings suggest, and therefore well adapted to bone-chilling winters.
Why, then, do Neanderthals have faces that jut further out than humans? "They had them because earlier hominids had them," Houlton says.
He laments the tendency of some anthropologists to "atomise the body", and explain each of its part as an exquisite adaptation to an environment. Selection for strong jaws and teeth has been a favourite explanation for other Neanderthal facial features, as well as nose size.
"There's no real good evidence to say that Neanderthals are producing these high levels of bite force to begin with," he says.
Weaver agrees. "A lot of these anatomical differences are probably more likely due to these chance changes," he says.
Journal reference:
Journal of Human Evolution
(DOI: 10.1016/j.jhevol.2008.07.001)
Report Spam
Logged
Your mind understands what you have been taught; your heart what is true.
Bianca
Superhero Member
Posts: 41646
Re: Why Did Neanderthals Have Such Big Noses?
«
Reply #2
on:
October 30, 2008, 07:32:06 pm »
Comparison of a Neanderthal skull (left)
with that of a Homo sapiens
(Credit:
Nathan Holton)
Report Spam
Logged
Your mind understands what you have been taught; your heart what is true.
Bianca
Superhero Member
Posts: 41646
Re: Why Did Neanderthals Have Such Big Noses?
«
Reply #3
on:
October 31, 2008, 01:23:37 pm »
Big Neanderthal Noses Served A Purpose
Posted on:
Thursday,
30 October 2008
Big noses on Neanderthals were found to be a fluke of evolution by anthropologists, rather then some
grand adaptation.
In the past, the Neanderthal nose has been a confusing matter for anthropologists.
They point out that modern cold-adapted humans have narrow noses to moisten and warm air as it enters
the
lung, and reduce water and heat loss during exhalation.
Big noses are more likely found in people whose ancestors evolved in tropical climates, where a large nasal
opening helps cool the body.
Tim Weaver, a palaeoanthropologist at the University of California, said Neanderthals bucked that trend.
"They were living in the glacial environment of Europe, colder than it is today, for most of the time," he said.
"So, it's sort of been an anomaly. Why do they have these wide nasal apertures?," he wondered.
Nathan Holton, a paleoanthropologist at the University of Iowa, said the old answer has been that Neanderthals have a big nose because they have a big mouth and a wide jaw, useful for ripping apart tough food.
"People have tried to explain the Neanderthal face as designed to produce high levels of bite force and trying
to explain the rest of a wide nasal breath as part of a larger tend," he said.
Holton and University of Iowa colleague Robert Franciscus measured facial dimensions in dozens of Neanderthals
and humans, ancient and modern.
The researchers could determine whether or not big mouths went with big noses, by correlating changes in the
size of nose width, the distance between canine teeth, and other features.
Holton and Franciscus found a small link between nose and mouth, but it was not enough to explain Neanderthal noses.
"However, another measurement - the degree to which the face juts forward - seemed a better match for nose width," Houlton said. "If you want to change the breadth of the nose, you change the degree of facial projection," he added.
Recent research suggests that Neanderthals matured at the same rate as humans.
So, what did the research say about Neanderthals who have faces that jut further out than humans?
"They had them because earlier hominids had them," Houlton said.
Image Courtesy Wikipedia
---
On the Net:
University of California
University of Iowa
Source: redOrbit Staff & Wire Reports
«
Last Edit: October 31, 2008, 01:28:49 pm by Bianca
»
Report Spam
Logged
Your mind understands what you have been taught; your heart what is true.
Volitzer
Superhero Member
Posts: 11110
Re: Why Did Neanderthals Have Such Big Noses?
«
Reply #4
on:
October 31, 2008, 04:27:03 pm »
To suck in more oxygen.
The Earth used to be 50% Nitrogen and 50% Oxygen but for some reasons it got reapportioned to 80% Nitorgen 20% Oxygen so the neaderthals with the largest noses were more aerobically efficient thus they were able to catch more food thus up their chances for survival superceded those with smaller noses.
Just a theory.
Report Spam
Logged
Wind
Hero Member
Posts: 608
Re: Why Did Neanderthals Have Such Big Noses?
«
Reply #5
on:
December 23, 2008, 12:34:14 pm »
By best friends nose is huge
He must really be in touch with his ancestors, hee hee hee
Report Spam
Logged
Pages: [
1
]
Go Up
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
Atlantis Online - Messages
-----------------------------
=> Messages
=> Administrative Messages
=> Commemorating Dates in History
=> Alerts & Warnings
=> Upcoming Events, Releases & Ads
=> Television: Shows & Events
-----------------------------
the Coffee Shop
-----------------------------
=> the Coffee Shop
=> Atlantis: Polls & News
=> Poltical Alerts
=> Causes & Activism
-----------------------------
Videos, Documentaries & Online Movies
-----------------------------
=> Ancient History & Lost Civilizations
=> Ghosts, UFOs & the Esoteric
=> Music, Entertainment & the Arts
=> Conspiracies & Suppressed Knowledge
=> Documentary & Videos
-----------------------------
Ages of the Earth
-----------------------------
=> The Early Earth, Geology & Fossils
=> Dinosaurs
=> Catastrophes & Mass Extinctions
=> Ice Age
=> Humanity's Origins & Civilization's First Steps
-----------------------------
Mythology & Heroic Sagas of Culture & Myth
-----------------------------
=> Mythology
=> Greek Mythology
=> Arthurian Myth
=> Quest for King Arthur
-----------------------------
Atlantis
-----------------------------
=> Atlantis & the Atlantic Ocean
=> Atlantis: Theories & Speculation
=> Plato's Atlantis
=> the Scientific Atlantis
=> Geology & Atlantis
=> Atlantis & the New Age
=> Atlantis in the Media
-----------------------------
Satellite Discoveries & Alternate Archaeology
-----------------------------
=> Alternate Archaeology
=> Satellite Discoveries & Aerial Archaeology
=> the Bock Saga
-----------------------------
Maps, Explorers & Adventurers
-----------------------------
=> the Oceans
=> Islands
=> the Bahamas, Bermuda, Cuba & the West Indies
=> Explorers & Adventurers
=> Maps, Cartographers & Cartography
-----------------------------
Egypt & the Pyramids
-----------------------------
=> Gods of Egypt
=> Egypt & the Pyramids
=> the Giza Complex
=> the Dynasties of Egypt
=> Egypt: Latest Discoveries
-----------------------------
the Guanches, Basques, Berbers & Sea People
-----------------------------
=> Guanches, Basques & Berbers
=> Pirates, Phantom Islands & Stories of the Sea
=> the Sea People
-----------------------------
the Ancient World
-----------------------------
=> Neolithic Europe
=> Stonehenge & the Druids
=> the Library of Alexandria, Ancient Historians & Philosophers
=> Ancient Warfare
=> the Spartans
-----------------------------
the Dawn of Civilization
-----------------------------
=> Africa, the Cradle of Life
=> China & the Asian Empires
=> Eastern Mysticism, India, & the Ancient Far East
=> Zoroastrianism, Arabia & the Near East
=> the Sumerians
=> Ancient Asia Minor
=> Hawaii, Australia, Alaska & the Pacific Rim
-----------------------------
Ancient Mediterranean Cultures
-----------------------------
=> Minoan Crete
=> Phoenicians & Carthage
=> Mediterranean Islands
=> Israelities & the Kabbalah
=> Etruscans
=> Ancient Greece
=> Rome: Empire & Republic
-----------------------------
Ancient European Cultures
-----------------------------
=> The Picts & Celts
=> Ireland: History & Myths
=> Balkan History
=> Italy & Magna Graecia
=> the Vikings & Scandinavia
=> Germanic History
-----------------------------
Timelines of Ancient Europe
-----------------------------
=> History of Britain
=> Scotland: in History & Lore
=> Continental Europe: Past & Present
=> the Dark Ages
=> the Medieval World
=> The Renaissance
-----------------------------
the Ancient Americas
-----------------------------
=> the Ancient Americas
=> Peru: Mysteries & Prehistory
=> Mesoamerican & South American Cultures
===> Aztec
===> Incan
===> Olmec
===> Toltec & Teotihuacan
=> Mayan
=> Native American
=> Canada: Past & Present
-----------------------------
The Crusades, Templars & the Holy Grail
-----------------------------
=> the Crusades
=> the Knights Templar
=> The Holy Grail & Christian artifacts
=> The Sacred Feminine, the Cathars & Gnosticism
=> the Da Vinci Code
-----------------------------
Ancient Mysteries
-----------------------------
=> Philosophy
=> Ancient Mysteries
=> Lemuria, Mu & other sunken civilizations
=> Easter Island
=> Oak Island
-----------------------------
Archaeology & Anthropology
-----------------------------
=> Museums & Universities
=> Archaeology
=> Ancient Languages
=> Archaeological News
=> Underwater Archaeology
-----------------------------
Ancient Knowledge, Mysticism & Sacred Beliefs
-----------------------------
=> Ley Lines, Ancient Astronomy & Archeoastronomy
=> Prophecy, 2012, End Times & the End of the World
=> Sacred Symbols
=> The Ancient Arts: Astrology, Alchemy, the Tarot, Arcane Recondite Practices & the I Ching
-----------------------------
Search for the Sacred
-----------------------------
=> Angels & Angelology
=> Goddess Worship
=> Search for the Sacred
=> World Religions
=> the Urantia Book
=> Wicca, Witchcraft, Paganism & Ritual Magic
-----------------------------
Health & Healing
-----------------------------
=> Health, Healing & Medical News
=> Human Biology
=> Love & Relationships
=> Women's Studies
-----------------------------
Science & Technology
-----------------------------
=> Science, Physics & Technology
=> History of Science
=> Evolution vs. Intelligent Design
=> Human Genetics
-----------------------------
Earth Changes
-----------------------------
=> Earth Changes
=> Global Warming
=> Botany & Plant Life
===> Plants of the Americas that Changed the World
=> Antarctica & the Arctic
-----------------------------
Space
-----------------------------
=> NASA
=> Mars, the Red Planet
=> Life on Other Worlds
=> the Universe
=> Images from Space
-----------------------------
UFOs, Aliens & Future Science
-----------------------------
=> UFO's
=> Aliens & Alien Abduction
=> UFO Evidence & in the Media
=> Alternate History & Multiverses
=> Future Science
=> Time Travel
-----------------------------
the Occult
-----------------------------
=> Ghosts & Apparitions
=> Communicating with the Dead
=> Paranormal Events, Reincarnation & Near Death Experiences
=> the Enchanted World
=> the Supernatural
=> the Occult
-----------------------------
the Unexplained
-----------------------------
=> Cryptozoology
=> Bigfoot Sightings
=> the Unexplained
=> the Hollow Earth, Crop Circles, Strange Structures & Devices
=> Vanishings & Unsolved Murders
-----------------------------
Science Fiction & Fantasy
-----------------------------
=> Lord of the Rings
=> Science Fiction
=> King Kong, Gigantopithecus & the Mountain Gorilla
=> Godzilla, King of Monsters
=> Comic Books
===> Comic Book Creators
===> Videogames & Toys
-----------------------------
Halloween & Seasonal
-----------------------------
=> Halloween
=> Seasonal
=> Monsters of Myth, Movies & Folklore
=> Ghost Stories
=> the Zombie Apocalypse
-----------------------------
Genres of Film & Literature
-----------------------------
=> Universal Horror
=> H. P. Lovecraft
=> Horror
=> Dark Shadows
=> Twin Peaks
=> Online Horror Movies Sci-Fi & TV Series
-----------------------------
Arts & Literature
-----------------------------
=> Online Books & Research Papers
=> Classical Literature & Book Reviews
=> Art History
=> Architecture
=> Sculpture & Statuary
=> the Great Masters
=> Music
-----------------------------
Media & Film
-----------------------------
=> Cinema
=> the History of Film
=> Marilyn Monroe
=> Actresses & Models
=> Entertainment News
-----------------------------
Modern Historical Mysteries
-----------------------------
=> American History
===> Presidents of the United States
=> the World Wars
===> the Great Depression
=> the Holocaust
=> the Middle East: Past & Present
=> Modern History
===> the Industrial Age
===> Civil Rights
=> Great Cities of the World
=> the Kennedys: Their History & Assasinations
=> New York City: Then & Now
-----------------------------
September 11th, 2001
-----------------------------
=> September 11th: Conspiracies, Cover-ups & Remembrance
=> The World Trade Center Remembered
===> Life of the Twin Towers
=> Modern Warfare
=> Environmental Disasters & Mass Tragedies
-----------------------------
Suppressed Knowledge
-----------------------------
=> New World Order
=> Conspiracies
=> Suppressed Knowledge
=> Media Matters
-----------------------------
Politics
-----------------------------
=> the Barack Obama Administration
=> Conservatives, Trump, & Republican Politics
=> Joe Biden, Democratic Politics & News
=> Tea Party, Constitution, Libertarian Parties & Ron Paul
=> Politics & News
-----------------------------
Current Events
-----------------------------
=> Current Events & Odd Stories
=> The World Today
=> Financial News & the Economy
===> The History of Labor
=> Breaking News
-----------------------------
General Category
-----------------------------
=> Opinions & Editorials
=> Cartoons, Humor & Comic Strips
=> Ecology, Pets & the Animal Kingdom
=> General & Miscellaneous
=> Sports
=> Computers & the Internet
-----------------------------
Art, Graphics & Creative Writing
-----------------------------
=> Fantasy Art & Graphics
=> Creative Writing
===> Horror Fiction
=> Poetry
=> Photography & Models
=> Earth Images
-----------------------------
Past Events
-----------------------------
=> Case for Bush Impeachment/War Crimes
===> Bush Administration Torture Scandal
=> Campaign 2008
=> Atlantis Online - Memorial & Biography
===> Atlantis Online - Old Posts
Powered by
EzPortal
Loading...