Some ecologists say the theory needs an update. They’ve proposed a new dynamic driving the emergence of new species, one that doesn’t involve adaptations or survival of the fittest.For reasons that remain unclear, they don't seem to be calling it the Cohen Theory of Evolution.
Give evolution enough time and space, they say, and new species can just happen. Speciation might not only be an evolutionary consequence of fitness differences and natural selection, but a property intrinsic to evolution, just as all matter has gravity.
28 March 2013
For reasons that will be obvious to longtime readers (if there's anyone out there still).
Posted by David at 5:25 PM