By A Mystery Man Writer
Why You Can't Climb a Tree
Evidence As to Man's Place in Nature, by Thomas H. Huxley
This fossil foot was made for walking – and climbing trees
Hunter gatherer hi-res stock photography and images - Page 8 - Alamy
Tree climbing and human evolution
Evolution of Life - Wikisource, the free online library
Why did human pygmies evolve to be so small, and how much genetic
Bornean orangutan - Wikipedia
Evolution of the human pygmy phenotype - ScienceDirect
Pygmies
Pygmies of Mt. Gorongosa – The Smaller Majority