Robert Kar
Sat, Mar-22-08, 06:16
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Bone Shows Hominin Could Walk Upright
(AP) -- A nearly six-million-year-old thigh bone may provide
some of the = earliest evidence for human ancestors walking on
two legs. New = measurements of the bone, discovered in Kenya
in 2000, confirm that the = hip and upper leg were adapted to
walking upright, researchers report in = this week's issue of
the journal Science.
Lead researcher Brian Richmond of George Washington University
in = Washington, reports the bone is from an early hominin
called Orrorin = tugenensis.=20
Richmond reports that the bone resembles thigh bones from
early human = ancestors known as Australopithecus and
Paranthropus which lived 2 = million to 3 million years ago,
which also were adapted to walk upright. =
The bone is adapted to attach to muscles that hold the hip
to keep = balance and is strengthened to handle the stress
of repeated, regular = motion, the researchers said. Thigh
bones from ancient and modern apes = are more rounded to
handle stress in all directions because they are = used in
many different ways including climbing and even hanging
upside = down.=20
Anthropologists had speculated that O. tugenensis could walk
upright but = are divided about its place in the evolution of
modern humans.=20
=A92008 The Associated Press
http://www.physorg.com/news125261447.html
Posted by Robert Karl Stonjek
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<DV><TBODY><TR><B><FONT size=3D5>Bone Shows Hominin Could
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<DVI><BR><B>(AP) -- A nearly six-million-year-old thigh bone
may provide = some of=20 the earliest evidence for
human ancestors walking on two legs. New =
measurements=20 of the bone, discovered in Kenya in
2000, confirm that the hip and upper = leg=20 were
adapted to walking upright, researchers report in this
week's issue = of the=20 journal <I>Science</I>.</B></-
DIV><STRONG></STRONG></TD></TR><TR><TD>
<DVII><BR>Lead researcher Brian Richmond of George Washington
University = in=20 Washington, reports the bone is from
an early hominin called Orrorin = tugenensis.=20
<BR><BR>Richmond reports that the bone resembles thigh
bones from early = human=20 ancestors known as
Australopithecus and Paranthropus which lived 2 =
million to 3=20 million years ago, which also were
adapted to walk upright. <BR><BR>The = bone is=20
adapted to attach to muscles that hold the hip to keep
balance and is=20 strengthened to handle the stress of
repeated, regular motion, the = researchers=20 said.
Thigh bones from ancient and modern apes are more
rounded to = handle stress=20 in all directions because
they are used in many different ways including =
climbing and even hanging upside down. <BR><BR>Anthropologists
had = speculated=20 that O. tugenensis could walk upright but
are divided about its place in = the=20 evolution of modern
humans. <BR><BR>=A92008 The Associated Press</DIV>
<DVIII><A=20 href=3D"http://www.physorg.com/news125261447.htm-
l">http://www.physorg.com=
/news125261447.html</A></DIV>
<DIX> </DIV>
<DX>Posted by<BR>Robert Karl=20 Stonjek</TD></TR></TBODY><-
/TABLE></DIV></DIV></BODY></HTML>
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quoted-printable
Bone Shows Hominin Could Walk Upright
(AP) -- A nearly six-million-year-old thigh bone may provide
some of the = earliest evidence for human ancestors walking on
two legs. New = measurements of the bone, discovered in Kenya
in 2000, confirm that the = hip and upper leg were adapted to
walking upright, researchers report in = this week's issue of
the journal Science.
Lead researcher Brian Richmond of George Washington University
in = Washington, reports the bone is from an early hominin
called Orrorin = tugenensis.=20
Richmond reports that the bone resembles thigh bones from
early human = ancestors known as Australopithecus and
Paranthropus which lived 2 = million to 3 million years ago,
which also were adapted to walk upright. =
The bone is adapted to attach to muscles that hold the hip
to keep = balance and is strengthened to handle the stress
of repeated, regular = motion, the researchers said. Thigh
bones from ancient and modern apes = are more rounded to
handle stress in all directions because they are = used in
many different ways including climbing and even hanging
upside = down.=20
Anthropologists had speculated that O. tugenensis could walk
upright but = are divided about its place in the evolution of
modern humans.=20
=A92008 The Associated Press
http://www.physorg.com/news125261447.html
Posted by Robert Karl Stonjek
------=_NextPart_000_0094_01C88C0D.9C2282B0 Content-Type:
text/html; charset="iso-8859-1" Content-Transfer-Encoding:
quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD> <META http-equiv=3DContent-Type
content=3D"text/html; = charset=3Diso-8859-1"> <META
content=3D"MSHTML 6.00.3790.1218" name=3DGENERATOR>
<STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff>
<DIV>
<DV><TBODY><TR><B><FONT size=3D5>Bone Shows Hominin Could
Walk=20 Upright</FONT></B></DIV><STRONG></STRONG></TD>-
</TR><TR><TD>
<DVI><BR><B>(AP) -- A nearly six-million-year-old thigh bone
may provide = some of=20 the earliest evidence for
human ancestors walking on two legs. New =
measurements=20 of the bone, discovered in Kenya in
2000, confirm that the hip and upper = leg=20 were
adapted to walking upright, researchers report in this
week's issue = of the=20 journal <I>Science</I>.</B></-
DIV><STRONG></STRONG></TD></TR><TR><TD>
<DVII><BR>Lead researcher Brian Richmond of George Washington
University = in=20 Washington, reports the bone is from
an early hominin called Orrorin = tugenensis.=20
<BR><BR>Richmond reports that the bone resembles thigh
bones from early = human=20 ancestors known as
Australopithecus and Paranthropus which lived 2 =
million to 3=20 million years ago, which also were
adapted to walk upright. <BR><BR>The = bone is=20
adapted to attach to muscles that hold the hip to keep
balance and is=20 strengthened to handle the stress of
repeated, regular motion, the = researchers=20 said.
Thigh bones from ancient and modern apes are more
rounded to = handle stress=20 in all directions because
they are used in many different ways including =
climbing and even hanging upside down. <BR><BR>Anthropologists
had = speculated=20 that O. tugenensis could walk upright but
are divided about its place in = the=20 evolution of modern
humans. <BR><BR>=A92008 The Associated Press</DIV>
<DVIII><A=20 href=3D"http://www.physorg.com/news125261447.htm-
l">http://www.physorg.com=
/news125261447.html</A></DIV>
<DIX> </DIV>
<DX>Posted by<BR>Robert Karl=20 Stonjek</TD></TR></TBODY><-
/TABLE></DIV></DIV></BODY></HTML>
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