Creationists insist that macroevolution has never been observed, and the excuse they use to deny that it has requires the addition of a bogus condition that simply does not apply. Creationists argue that evolution can only occur within definite limits, and then only to subtle variance within their kind. They say new diversity is limited to rare and unviable hybrids between those kinds, and they usually say that the emergence of new species is impossible. No Darwinist would ever say any of these things.

"11th Foundational Falsehood of Creationism", Youtube (June 26, 2008) - Foundational Falsehoods of Creationism

11th Foundational Falsehood of Creationism