(August 11, 2010 at 12:47 pm)theophilus Wrote: Macroevolution is the belief that organisms can develop completely new characteristics that are not found in their ancestors. We don't have proof that this actually happened.How do you explain Richard Lenski's long term (20 year+) E.coli experiment, which saw the development of a completely new characteristic in the E.coli bacterium? Bacteria in one petri-dish evolved the ability to grow on citric acid, which was part of the growth medium but not something that E.coli can do naturally.
Source: E._coli_long-term_evolution_experiment
