At the start of the present study, a new population was derived from each of these 25 populations and then returned to the ancestral-Ives environmental conditions for 50 generations. The evolutionary ...

Research from UChicago dissects how a single genetic switch helps butterflies mimic wing patterns of other species to protect ...

G. Ledyard Stebbins (1906-2000)- an appreciation / Peter H. Raven -- Solution to Darwin's dilemma: discovery of the missing Precambrian record of life / J. William Schopf -- The chimeric eukaryote: ...