[Lurking Libertarian]

the fact that species to new species evolution has ever been witnessed by a single scientist.

Never? Look here, or here.

[Carling]

Were those supposed to prove something? The one example that may pass the muster is the house mouse, but then the changes occurred over 250 years and could (note that word) be the result of outside factors or breeding with other species.

Still not a fact.

[Michael_Michaelangelo]

Example #1 from your link of witnessed 'speciations' is:

5.1.1.1 Evening Primrose (Oenothera gigas) While studying the genetics of the evening primrose, Oenothera lamarckiana, de Vries (1905) found an unusual variant among his plants. O. lamarckiana has a chromosome number of 2N = 14. The variant had a chromosome number of 2N = 28. He found that he was unable to breed this variant with O. lamarckiana. He named this new species O. gigas.

You realize this example is controversial, right?