I'm an evolutionary biologist and the thought of evolution at such rates makes my head spin.
You think that's bad? Creationist John Woodmorappe writes:
The relevant evidence clearly shows that Homo sapiens sensu lato is a separate and distinct entity from the other hominids. No overall evolutionary progression is to be found. Adam and Eve, and not the australopiths/habilines, are our actual ancestors. As pointed out by other creationists [e.g., Lubenow], Homo ergaster, Homo erectus, Homo heidelbergensis, and Homo neanderthalensis can best be understood as racial variants of modern man—all descended from Adam and Eve, and most likely arising after the separation of people groups after Babel.
So creationists think the change
from modern man, i.e., Adam and Eve,
to these four species of fossil man took place since the Babel incident, which is usually placed after the global flood and in the range of 4,000 to 5,300 years ago. This change from modern man to
Homo ergaster would require a rate of evolution on the order of several hundred times as rapid as scientists posit for the change from
Homo ergaster to modern man! This is in spite of the fact that most creationists deny evolution occurs on this scale at all; now they have not only proposed such a change themselves, but see it
several hundreds of times faster and in reverse!
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.