Results 1 to 4 of 4

Thread: No single birthplace of mankind, say scientists

  1. #1
    Hatchling
    Apricity Funding Member
    "Friend of Apricity"

    Mingle's Avatar
    Join Date
    Nov 2016
    Last Online
    @
    Location
    America
    Meta-Ethnicity
    Central European
    Ethnicity
    Pashtun
    Country
    United States
    Region
    Aboriginal
    Y-DNA
    R1a>Z93>FT296004
    mtDNA
    U2c1
    Gender
    Posts
    10,502
    Thumbs Up
    Received: 6,880
    Given: 7,415

    1 Not allowed!

    Default No single birthplace of mankind, say scientists

    Researchers say it is time to drop the idea that modern humans originated from a single population in a single location

    The origins of our species have long been traced to east Africa, where the world’s oldest undisputed Homo sapiens fossils were discovered. About 300,000 years ago, the story went, a group of primitive humans there underwent a series of genetic and cultural shifts that set them on a unique evolutionary path that resulted in everyone alive today.

    However, a team of prominent scientists is now calling for a rewriting of this traditional narrative, based on a comprehensive survey of fossil, archaeological and genetic evidence. Instead, the international team argue, the distinctive features that make us human emerged mosaic-like across different populations spanning the entire African continent. Only after tens or hundreds of thousands of years of interbreeding and cultural exchange between these semi-isolated groups, did the fully fledged modern human come into being.

    Dr Eleanor Scerri, an archaeologist at Oxford University, who led the international research, said: “This single origin, single population view has stuck in people’s mind … but the way we’ve been thinking about it is too simplistic.”

    This continental-wide view would help reconcile contradictory interpretations of early Homo sapiens fossils varying greatly in shape, scattered from South Africa (Florisbad) to Ethiopia (Omo Kibish) to Morocco (Jebel Irhoud).

    The telltale characteristics of a modern human – globular brain case, a chin, a more delicate brow and a small face – seem to first appear in different places at different times. Previously, this has either been explained as evidence of a single, large population trekking around the continent en masse or by dismissing certain fossils as side-branches of the modern human lineage that just happened to have developed certain anatomical similarities.

    The latest analysis suggests that this patchwork emergence of human traits can be explained by the existence of multiple populations that were periodically separated for millennia by rivers, deserts, forests and mountains before coming into contact again due to shifts in the climate. “These barriers created migration and contact opportunities for groups that may previously have been separated, and later fluctuation might have meant populations that mixed for a short while became isolated again,” said Scerri.

    The trend towards more sophisticated stone tools, jewellery and cooking implements also supports the theory, according to the paper in the journal Trends in Ecology & Evolution.

    Scerri assembled a multidisciplinary group to examine the archaeological, fossil, genetic and climate data together, with the aim of eliminating biases and assumptions. Previously, she said, scientific objectivity had been clouded by fierce competition between research groups each wanting their own discoveries to be given a prominent place on a linear evolutionary ladder leading to the present day. Disputes between rival teams working in South Africa and east Africa had become entrenched, she said.

    “Someone finds a skull somewhere and that’s the source of humanity. Someone finds some tools somewhere, that’s the source of humanity,” she said, describing the latest approach as: “‘Let’s be inclusive and construct a model based on all the data we have available.”

    The analysis also paints a picture of humans as a far more diverse collection of species and sub-populations than exists today. Between 200,000 and 400,000 years ago, our own ancestors lived alongside a primitive human species called Homo naledi, found in southern Africa, a larger brained species called Homo heidelbergensis in central Africa and perhaps myriad other humans yet to be discovered.




    https://www.theguardian.com/science/...say-scientists

  2. #2
    Banned
    Join Date
    Jan 2013
    Last Online
    09-19-2018 @ 05:46 AM
    Meta-Ethnicity
    Cushite
    Ethnicity
    Somali
    Country
    Canada
    Politics
    You will not like it
    Hero
    el-Hajj Malik el-Shabazz
    Gender
    Posts
    14,637
    Thumbs Up
    Received: 23,148
    Given: 18,117

    0 Not allowed!

    Default

    i'll stick to Adam and Eve, thank you.

  3. #3
    Veteran Member
    Apricity Funding Member
    "Friend of Apricity"

    Crn Volk's Avatar
    Join Date
    Feb 2012
    Last Online
    @
    Meta-Ethnicity
    Slavic
    Ethnicity
    Macedonian
    Country
    Macedonia
    Taxonomy
    Pontid-CM
    Hero
    Julius Evola
    Religion
    Orthodox
    Gender
    Posts
    14,812
    Thumbs Up
    Received: 6,157
    Given: 6,705

    0 Not allowed!

    Default

    Makes sense. Perhaps the racial hierarchy will return


  4. #4
    Veteran Member
    Join Date
    Aug 2014
    Last Online
    Today @ 12:39 PM
    Meta-Ethnicity
    Germanic Celtic Romance
    Ethnicity
    Central/Northwestern Euro
    Country
    United States
    Gender
    Posts
    7,821
    Thumbs Up
    Received: 2,965
    Given: 422

    0 Not allowed!

    Default

    So you've got chimps evolving here, gorillas elsewhere, and baboons who knows where. Sounds reasonable.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 48
    Last Post: 07-26-2019, 11:33 AM
  2. Replies: 33
    Last Post: 06-15-2017, 01:11 PM
  3. Will Christianity Perish in Its Birthplace?
    By wvwvw in forum Christianity
    Replies: 0
    Last Post: 04-15-2017, 05:30 AM
  4. Replies: 0
    Last Post: 06-13-2012, 12:12 PM
  5. Replies: 1
    Last Post: 02-21-2012, 05:16 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •