The Lack of Speciation

The punctuated eqilibrium model of evolution has been widly accepted, not because it has a compelling theoretical basis but because it appears to resolve a dilemma. ... apart from its intrinsic circularity (one could argue that speciation can occur only when phyletic change is rapid, not vice versa), the model is more ad hoc explanation than theory, and it rests on shaky ground.

- Robert E. Ricklefs

The final result of all my investigations and study, namely that the idea of evolution, tested by experiments in speciation and allied sciences, always leads to incredible contradictions and confusing consequences, on account of which the evolution theory ought to be entirely abandoned.

- Nils Heribert-Nilsson

Although the importance of speciation is clear and convincing, the processes involved are, for the most part, unknown.

- Bush, Guy L.

The fact remains that there exists to this day not a shred of bona fide scientific evidence in support of the thesis that macroevolutionary transformations, speciation, have ever occurred.

- Wolfgang Smith

Evolution is both troubled from without by the nagging insistencies of antiscientists and nagged from within by the troubling complexities of genetic and developmental mechanisms and new questions about the central mystery- speciation itself.

- Thomson, Keith Stewart

Despite a close watch, we have witnessed no new species emerge in the wild in recorded history. Also, most remarkably, we have seen no new animal species emerge in domestic breeding. That includes no new species of fruitflies in hundreds of millions of generations in fruitfly studies, where both soft and harsh pressures have been deliberately applied to the fly populations to induce speciation.

- Kevin Kelly

There is no doubt that natural selection is a mechanism, that it works. It has been repeatedly demonstrated by experiment. There is no doubt at all that it works. But the question of whether it produces new species is quite another matter. No one has ever produced a species by mechanisms of natural selection. 

- Colin Patterson
   
The evolutionary divergence of a single species into two has never been directly observed in nature.

- Darren E. Irwin

 The formation of a new species, by any mechanism, has never been observed.

- Schwartz J.H.

Darwin produced embarrassingly little concrete evidence to back up some of his most important claims. This includes the change of one species into another in succeeding geological strata, or the production of new structures and taxonomic types by natural selection.

- Ernst Mayr

No one can demonstrate that the limits of a species have ever been passed. These are the Rubicons which evolutionists cannot cross…Darwin ransacked other spheres of practical research work for ideas…But his whole resulting scheme remains, to this day, foreign to scientifically established zoology, since actual changes of species by such means are still unknown.

- Albert Fleischmann

In the wild, in breeding, and in artificial life, we see the emergence of variation. But by the absence of greater change, we also clearly see that the limits of variation appear to be narrowly bounded, and often bounded within species.

- Kelly, Kevin

Nine-tenths of the talk of evolutionists is sheer nonsense, not founded on observation and wholly unsupported by facts. This museum is full of proofs of the utter falsity of their views. In all this great [British] museum, there is not a particle of evidence of the transmutation of species.

- Dr. Etheridge, Paleontologist of the British Museum

The facts fail to give any information regarding the origin of actual species, not to mention the higher categories.
 
- Richard Goldschmidt