96 research outputs found

    On Neanderthal Crania and Speech: Response to Lieberman

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    http://www.jstor.org/stable/274428

    Auditory exostoses and evidence for fishing at Vlasac

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    http://www.jstor.org/stable/274341

    On Neanderthal crania and speech: Response to Lieberman

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    This is the publisher's version, also available electronically from http://www.jstor.org/stable/274428

    Hand to mouth in a Neandertal : right-handedness in regourdou 1

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    We describe and analyze a Neandertal postcranial skeleton and dentition, which together show unambiguous signs of right-handedness. Asymmetries between the left and right upper arm in Regourdou 1 were identified nearly 20 years ago, then confirmed by more detailed analyses of the inner bone structure for the clavicle, humerus, radius and ulna. The total pattern of all bones in the shoulder and arm reveals that Regourdou 1 was a right-hander. Confirmatory evidence comes from the mandibular incisors, which display a distinct pattern of right oblique scratches, typical of right-handed manipulations performed at the front of the mouth. Regourdou's right handedness is consistent with the strong pattern of manual lateralization in Neandertals and further confirms a modern pattern of left brain dominance, presumably signally linguistic competence. These observations along with cultural, genetic and morphological evidence indicate language competence in Neandertals and their European precursors

    Molecular Gas in the z=1.2 Ultraluminous Merger GOODS J123634.53+621241.3

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    We report the detection of CO(2-1) emission from the z=1.2 ultraluminous infrared galaxy (ULIRG) GOODS J123634.53+621241.3 (also known as the sub-millimeter galaxy GN26). These observations represent the first discovery of high-redshift CO emission using the new Combined Array for Research in Millimeter-Wave Astronomy (CARMA). Of all high-redshift (z>1) galaxies within the GOODS-North field, this source has the largest far-infrared (FIR) flux observed in the Spitzer 70um and 160um bands. The CO redshift confirms the optical identification of the source, and the bright CO(2-1) line suggests the presence of a large molecular gas reservoir of about 7x10^10 M(sun). The infrared-to-CO luminosity ratio of L(IR)/L'(CO) = 80+/-30 L(sun) (K Km/s pc^2)^-1 is slightly smaller than the average ratio found in local ULIRGs and high-redshift sub-millimeter galaxies. The short star-formation time scale of about 70 Myr is consistent with a starburst associated with the merger event and is much shorter than the time scales for spiral galaxies and estimates made for high-redshift galaxies selected on the basis of their B-z and z-K colors.Comment: Accepted for publication in ApJ Letter

    Detection of CO from SMM J16359+6612, The Multiply Imaged Submillimeter Galaxy Behind A2218

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    We report the detection of CO (JJ=3\to2) line emission from all three multiple images (A,B and C) of the intrinsically faint (\simeq 0.8 mJy) submillimeter-selected galaxy SMM J16359+6612. The brightest source of the submm continuum emission (B) also corresponds to the brightest CO emission, which is centered at zz=2.5168, consistent with the pre-existing redshift derived from \Ha. The observed CO flux in the A, B and C images is 1.2, 3.5 and 1.6 Jy \kms respectively, with a linewidth of 500±100500\pm 100 \kms. After correcting for the lensing amplification, the CO flux corresponds to a molecular gas mass of 2×1010h712\sim 2\times 10 ^{10} h_{71}^{-2} \Msun, while the extent of the CO emission indicates that the dynamical mass of the system 9×1010\sim9\times10^{10} \Msun. Two velocity components are seen in the CO spectra; these could arise from either a rotating compact ring or disk of gas, or merging substructure. The star formation rate in this galaxy was previously derived to be \sim100--500 \Msun \yr. If all the CO emission arises from the inner few kpc of the galaxy and the galactic CO-to-H2_2 conversion factor holds, then the gas consumption timescale is a relatively short 40 Myr, and so the submm emission from SMM J16359+6612 may be produced by a powerful, but short-lived circumnuclear starburst event in an otherwise normal and representative high-redshift galaxy.Comment: Appearing in the 2004 October 10 issue of the Astrophysical Journal Letters, Volume 614, L5-L

    Sexual Dimorphism

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    doi:10.1146/annurev.an.14.100185.002241Annual Review of Anthropology http://arjournals.annualreviews.org/loi/anthr

    The Iceman as a Burial

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    Since his discovery in 1991 the iceman has been widely seen as meeting a dramatic end – mortally wounded by an arrow shot while attempting to flee through an Alpine pass. A careful study of all the located grave goods, here planned comprehensively for the first time, points strongly towards the scene as one of a ceremonial burial, subsequently dispersed by thawing and gravity. The whole assemblage thus takes on another aspect – not a casual tragedy but a mortuary statement of its day

    Krapina 3 cut marks

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    Incisions on the frontal of the Krapina 3 cranium differ from other cut marks from the site. Thirty-five, mostly parallel marks course up the frontal from right of the midline, just posterior to the supraorbitale point to left of the midline, slightly anterior to bregma. They are angled mostly perpendicular to the midsagittal plane, averaging 5.2 mm in length and are on average 1.2 mm apart. The marks' characteristics are not consistent with scalping, cannibalism, defleshing or other perimortem activities described for Neandertals or modern groups. These marks represent a type of funereal behavior yet to be documented in Neandertals and suggest a kind of ritual treatment of the deceased
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