Stephen Montgomery, one of the researchers from Cambridge University, said: "The discovery challenged our understanding of human evolution and created much debate about whether H. floresiensis was a distinct species or a diseased individual.In hindsight, this is not so unusual. Selection acts to mold species into what is best adapted for the environment that they are in. We have seen a shrinking of the modern human brain over that of Neandertals (a drop of about 300 cc) as well as a general shrinking of tooth size and facial size. It simply wasn't needed any longer.
"Much of the debate about the place of H. floresiensis in the primate tree is centred around its small size, in particular the small brain size. The argument raised has been that the evolution of such a small brain does not fit with what we know about primate brain evolution.
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