They're farther along mentally than homo erectus was about 1.7 million years ago. Their brains are about twice as big.
Is the fact of the day - brain volume is related to intelligence?
For me, scientific evidence shows conclusively that the Earth is over 4.4 billion years old - not 5000 years. Less conclusive, therefore open to modification is evolution as a theory of life's origins.
Darwin, by the way, only concluded that new species may come into existance as a result of natural selection which would be defined by environmental needs with respect to survival.
Experiments to test this theory have been done but it occurs to me that experiments such as these are in the control of the experimentors. Wouldn't they be defined as the intelligent designers? This causes me to have brain cramps.
The fairly recent discovery of dinosaurs forced evolutionists into a corner just as it did those who literaly interpret the Bible.
Neither is complete enough to stand up to scientific scrutiny. Both seem to suffer from close minded tunnel vision which soon breaks down into name calling. Kind of like you would expect from someone who never evolved from the third grade.