I listen to some math scientists etc and they stated that jumping from one type of species like reptile to mammal is mathematically all but impossible
Life has never 'jumped' from one species to another. If you could hold hands with your mother who held hands with her mother who held hands with her mother and so on and on back for thousands of generations you would not notice any change from one generation to the next. But if you compared your mother to her gx5000 grandmother you would see that they were very different. And then as you come forwards you would see another branch of a line stretching forward into the present day that evolved in a different way and gradually became modern primates.
Also never listen to mathematicians about evolution or to taxi drivers about politics. If you want to know if speciation is possible talk to a biologist or a geneticist.