Thursday, 29 September 2016

Genome study reveals rich history of Aboriginal Australians

Blogger Comments:
  1. Some modern humans never left Africa, so they are not descended from those who left.
  2. The humans that left Africa interbred with descendants of those humans who had left Africa earlier than them.
  3. Those descended from these latest emigrants are therefore also descended from the earlier waves of emigrants.

Wednesday, 15 June 2016

Hobbit discovery: 700,000-year-old find could shed new light on evolution

Blogger Comment:

The simplest explanation is that the "hobbits" are Australopithecines.  The material evidence is consistent with this and inconsistent with both Homo habilis and Homo erectus.  The view that they were later species that "shrunk" is not the simplest theory, and the proposition that smaller primate brains would be more adaptive than larger brains is exceedingly unlikely and needs plausible supporting argument.  There are many examples of other primates (orang utans, gibbons, japanese macaques) migrating enormous distances from their place of speciation.