'White Finches evolved to be Black' : is ANY of this true ?

Well 'finches' are 'finches' - we'll let that semi-accurate layperson definition stand, for the sake of argument.

But did all the white finches, as gradually as Darwin claimed they must, all turn into black finches ?

But might it really be that most finches used to white and now - currently and only here and not there - most are black ?

Joshua Lederberg "straightens" out 1950s bacteria - rescuing them from Henry Dawson's necrophilia label !

Joshua Lederberg loved to say how in the late 1940s and early 1950s, everybody (but him) thought that bacteria were asexual plants.

He soon straightened them and the bacteria out : he demonstrated that (once in about a billion go-a-rounds in a few strains of) bacteria have normal man-on-top sex just like animals and humans.