exaptations (Introduction)

by David Turell , Friday, September 06, 2013, 18:46 (4096 days ago) @ dhw

A new study using metabolic networks to sort out adaptation from exaptation. The article is somewhat confusing because whole organ exaptations are not mentioned. Main example, our larynx dropped in postion 500,000 years before speech started, and created all sorts of choking problems in the process, counter to the idea that natural selection allows only the fittest stuff.-http://www.scientificamerican.com/article.cfm?id=evolution-as-opportunist&page=2