" We are skeptical of claims for the ability of random mutation and natural selection to account for the complexity of life. Careful examination of the evidence for Darwinian theory should be encouraged." - Dissent from Darwin

Natural selection [is used] carelessly as a mantra, as in the evidence-free “just-so stories” concocted out of thin air by mentally lazy adaptationists. (Stephen Jay Gould)

In the absence of any other proof, the thumb alone would convince me of God's existence. (Isaac newton)

Wednesday, February 21, 2007

How human stood up

"Even if this is an exaggeration, it should at least encourage us to look elsewhere for possible benefits of our unusual gait. It arouses the suspicion that, whatever non-locomotor benefits of bipedality we might propose as drivers of its evolution, they probably did not have to fight against strong locomotor costs.
"What might a non-locomotor benefit look like? A stimulating suggestion is the sexual selection theory of Maxine Sheets-Johnstone, of the University of Oregon. She thinks we rose on our hind legs as a means of showing off our penises. Those of us that have penises, that is. Females, in her view, were doing it for the opposite reason: concealing their genitals which, in primates, are more prominently displayed on all fours. This is an appealing idea but I don't carry a torch for it. I mention it only as an example of the kind of thing I mean by a non-locomotor theory. As with so many of these theories, we are left wondering why it would apply to our lineage and not to other apes or monkeys." Taken from :The Ancestor's Tale: A Pilgrimage to the Dawn of Evolution By Richard Dawkins :91.

Original Storyteller : Maxine Sheets-Johnstone, of the University of Oregon
Re-storyteller : Richard Dawkins www.orionbooks.co.uk/extras/richarddawkins_theancestorstale.pdf

Storyteller: Prof Robin Crompton, Biomedical Sciences, Liverpool University.
Early humans 'learnt to walk in the trees

Story Research: http://mynym.blogspot.com/2006/02/nomogenesis.html

No comments: