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> The evidence from Tam Pà Ling has pushed back the timing of H. sapiens’ arrival in Southeast Asia. This suggests the mainland, along with the coastal and isla

> The evidence from Tam Pà Ling has pushed back the timing of H. sapiens’ arrival in Southeast Asia. This suggests the mainland, along with the coastal and island locations, may have also been a viable dispersal route. I’m curious what is the implication of this paragraph. If the first date was later, why would the route change?

detourdog 3y ago
Overtime the geographic changes could open and close various routes.
defrost 3y ago
There's a broader deeper debate|question about the expansion of H.Sapiens across the planet: Proponents of a coastal migration model for H. sapiens out of Africa argue that coastlines would have provided for a fast, directional population expansion with predictable resources and supplies of potable water. Those opposing, point out that there is little direct evidence to support a coastal-highway hypothesis and that there is evidence that early humans were able to make use of savanna and rainforest environments. https://www.nature.com/articles/s41598-019-42946-9 https://www.nature.com/articles/s41598-019-42946-9 The cave in north east Laos being excavated here is well away from the coastline. Later H.Sapiens evidence in the interior of S.E.Asia can be explained by coastal expansion followed by a later push into the interior (as there are early signs of H.Sapiens in coastal areas). Early H.Sapiens evidence in the interior of S.E.Asia as old as coastal evidence supports the notion that expansion may have been through interior routes crossing steep terrains and passing through jungles.
- masklinn 3y ago
  Wouldn’t coastal evidence be basically nonexistent outside of the Eemian though?
  - defrost 3y ago
    Mostly but not always. I don't know much about the Laos | Vietnam area and any evidence there, but I can reference the Sahul (Greater landmass creater by the lower seas and joing of PNG - Australia - Tasmania) and Sundaland. If you look at the coastline graphics in the linked wikipedia articles you can see that in various places the coastlines almost aligned - additionally various islands of today were hilltops near the coastlines of old. Dated remains on a modern island can line up with hilltop dwellings with views of the coastline of old. https://en.wikipedia.org/wiki/Sahul https://en.wikipedia.org/wiki/Sahul https://en.wikipedia.org/wiki/Sundaland https://en.wikipedia.org/wiki/Sundaland
- deleted 3y ago
  [deleted]

detourdog 3y ago

Overtime the geographic changes could open and close various routes.

defrost 3y ago

There's a broader deeper debate|question about the expansion of H.Sapiens across the planet: Proponents of a coastal migration model for H. sapiens out of Africa argue that coastlines would have provided for a fast, directional population expansion with predictable resources and supplies of potable water. Those opposing, point out that there is little direct evidence to support a coastal-highway hypothesis and that there is evidence that early humans were able to make use of savanna and rainforest environments. https://www.nature.com/articles/s41598-019-42946-9 https://www.nature.com/articles/s41598-019-42946-9 The cave in north east Laos being excavated here is well away from the coastline. Later H.Sapiens evidence in the interior of S.E.Asia can be explained by coastal expansion followed by a later push into the interior (as there are early signs of H.Sapiens in coastal areas). Early H.Sapiens evidence in the interior of S.E.Asia as old as coastal evidence supports the notion that expansion may have been through interior routes crossing steep terrains and passing through jungles.

masklinn 3y ago
Wouldn’t coastal evidence be basically nonexistent outside of the Eemian though?
- defrost 3y ago
  Mostly but not always. I don't know much about the Laos | Vietnam area and any evidence there, but I can reference the Sahul (Greater landmass creater by the lower seas and joing of PNG - Australia - Tasmania) and Sundaland. If you look at the coastline graphics in the linked wikipedia articles you can see that in various places the coastlines almost aligned - additionally various islands of today were hilltops near the coastlines of old. Dated remains on a modern island can line up with hilltop dwellings with views of the coastline of old. https://en.wikipedia.org/wiki/Sahul https://en.wikipedia.org/wiki/Sahul https://en.wikipedia.org/wiki/Sundaland https://en.wikipedia.org/wiki/Sundaland
deleted 3y ago
[deleted]