New study supports Australo-melanesians as part of the first wave Out of Africa

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How did anatomically modern humans populate the world? A recent paper in the Journal of Human Evolution analyses the fossil record and concludes that australo-melanesians – ancestors of several indigenous populations including those found in Malaysia, Philippines, Indonesia and Australia – were part of the initial migration out of Africa, while other populations dispersed later.

Australo-Melanesians and a very ancient ancestry
Popular Archaeology, 05 August 2015

Testing modern human out-of-Africa dispersal models and implications for modern human origins
Journal of Human Evolution doi:10.1016/j.jhevol.2015.06.008

The modern human expansion process out of Africa has important implications for understanding the genetic and phenotypic structure of extant populations. While intensely debated, the primary hypotheses focus on either a single dispersal or multiple dispersals out of the continent. Here, we use the human fossil record from Africa and the Levant, as well as an exceptionally large dataset of Holocene human crania sampled from Asia, to model ancestor–descendant relationships along hypothetical dispersal routes. We test the spatial and temporal predictions of competing out-of-Africa models by assessing the correlation of geographical distances between populations and measures of population differentiation derived from quantitative cranial phenotype data. Our results support a model in which extant Australo-Melanesians are descendants of an initial dispersal out of Africa by early anatomically modern humans, while all other populations are descendants of a later migration wave. Our results have implications for understanding the complexity of modern human origins and diversity.

Wednesday Rojak #66

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Catching up on a month’s worth of rojak, so some of the stories may be a little dated. Today’s assortment takes us to the ongoing culture war between Malaysia and Indonesia, the origin of the Komodo Dragon (no, it hasn’t gone to Malaysia), and Java Man’s eating habits (no, they didn’t eat at Malaysia either).
Orchestre de gamelan (Musées de Dahlem/Berlin)
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Negritos or Malays: Who are the original inhabitants of the Philippines?

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When I was younger, I remember reading in a Filipino children’s book that the Filipinos were made up of a migratory Malay population. I didn’t think much of it then until this article came up which challenges the notion of the indigenous Filipino.

Who are the indigenous?
The Philippine Inquirer, 12 February 2008
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