adaptive mutations

Plant tissue

Waiting Longer for Two Mutations

An interesting paper appeared recently in an issue of the journal Genetics, “Waiting for Two Mutations: With Applications to Regulatory Sequence Evolution and the Limits of Darwinian Evolution” (Durrett, R & Schmidt, D. 2008. Genetics 180: 1501-1509). As the title implies, it concerns the time one would have to wait for Darwinian processes to produce some helpful biological feature (here, Read More ›

mosquito
mosquito on human skin at sunset

Science, E. coli, and the Edge of Evolution

Dear Readers, As I wrote in The Edge of Evolution, Darwinism is a multifaceted theory, and to properly evaluate the theory one has to be very careful not to confuse its different aspects. Unfortunately, stories in the news and on the internet regularly confuse the facets of Darwinism, ignore distinctions made in The Edge of Evolution, or misstate the arguments of intelligent Read More ›