To: Abd al-Rahiim
It's very easy to test microevolution - change in the allele frequencies of a population over time. Bacteria, which you mention as having really short lifespans, are great test subjects.
We've tested both micro- and macro-evolution with bacteria. Remember, "macro" refers to a change in species, not to the size of the subject. We've accomplished or observed it mainly in plants though.
Thanks for the reminder.
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