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I don't understand this claim of "overnight evolution" at all. The family lines that survived the cold may have experienced the critical DNA mutation(s) anytim
by DrScump 9y ago
I don't understand this claim of "overnight evolution" at all.
The family lines that survived the cold may have experienced the critical DNA mutation(s) anytime before the unprecedented cold. Do they have a means to measure exactly when those mutations occurred? Just because they manifested in response to this cold snap doesn't mean they didn't exist long before. Or did I miss something?
- flukus 9y agoEvolution is the change in populations (allele frequency) over time, not the gene mutation itself. If 10% of the lizards in the article had this gene before the storm and the 90% without it died off then the frequency has gone from 10% to 100%, which is overnight evolution.