• =?UTF-8?Q?Re=3A_Humans_in_Africa=E2=80=99s_wet_tropical_forests_150?= =

    From Mario Petrinovic@21:1/5 to Primum Sapienti on Thu Apr 10 10:12:11 2025
    On 10.4.2025. 5:37, Primum Sapienti wrote:

    https://www.newsweek.com/human-evolution-rainforests-archaeology-west- africa-ivory-coast-2036488

    Humans were living in rainforests roughly
    150,000 years ago, some 80,000 years earlier
    than was previously thought—and may have been
    an important center for early human evolution.

    This is the conclusion of an international
    team of researchers who re-examined an
    archaeological site in West Africa from which
    stone tools of previously uncertain
    age—including picks and smaller retouched
    tools—had been uncovered.
    ...
    "Before our study, the oldest secure evidence
    for habitation in African rainforests was
    around 18 thousand years ago, and the oldest
    evidence of rainforest habitation anywhere
    came from southeast Asia at about 70 thousand
    years ago," said lead author and archaeologist
    Eslem Ben Arous, of Spain's National Centre
    for Human Evolution Research, in a statement.
    ...


    https://www.nature.com/articles/s41586-025-08613-y
    Humans in Africa’s wet tropical forests
    150 thousand years ago

    Abstract
    Humans emerged across Africa shortly before
    300 thousand years ago (ka). Although this
    pan-African evolutionary process implicates
    diverse environments in the human story, the
    role of tropical forests remains poorly
    understood. Here we report a clear
    association between late Middle Pleistocene
    material culture and a wet tropical forest
    in southern Côte d’Ivoire, a region of
    present-day rainforest. Twinned optically
    stimulated luminescence and electron spin
    resonance dating methods constrain the onset
    of human occupations at Bété I to around
    150 ka, linking them with Homo sapiens. Plant
    wax biomarker, stable isotope, phytolith and
    pollen analyses of associated sediments all
    point to a wet forest environment. The
    results represent the oldest yet known clear
    association between humans and this habitat
    type. The secure attribution of stone tool
    assemblages with the wet forest environment
    demonstrates that Africa’s forests were not
    a major ecological barrier for H. sapiens as
    early as around 150 ka.

    The "ecological barrier" were trading routes towards coastline. We
    need salt.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)