Bing: Field mustard, a subspecies of Brassica rapa, a species of plants that includes napa cabbage, turnips, and bok choy.
We usually think of evolution as a long, laborious process, stretching over hundreds if not thousands of years. But sometimes, it happens much more quickly.
In a paper published today in Molecular Ecology researchers announced that they found genetic differences between the ancestors and descendants of two separate populations of field mustard both of which evolved during the...