Natures Wonders- (Introduction)
by David Turell 
, Sunday, October 30, 2011, 01:25 (4774 days ago) @ David Turell
What protects a woodpecker's brain from concussions?
http://www.bbc.co.uk/news/science-environment-15458633
I can't think of the itty-bitty Darwin steps to have the bird develop this solution. What made them decide to beat their heads against the hard bark of a tree instead of scooping up worms in the ground? I thought evolution developed toward advantageous results?
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2011-08-14, 02:12
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