Evolutionary theory of dating
Not one but many creatures intermediate between living apes and humans have since been found as fossils.
The oldest known fossil had an upright human stance but a cranial capacity of less than 500 cc (equivalent to a brain weight of about 500 grams), comparable to that of a gorilla or a chimpanzee and about one-third that of humans.
jaw unmistakably evolved into bones now found in the mammalian ear.
At first, such a transition would seem unlikely—it is hard to imagine what function such bones could have had during their intermediate stages.
have their origin in other preexisting types and that the distinguishable differences are due to modifications in successive generations.
The theory of evolution is one of the fundamental keystones of modern biological theory. More than 2 million existing of organisms have been named and described; many more remain to be discovered—from 10 million to 30 million, according to some estimates.
Methods such as radiometric —measuring the amounts of natural radioactive atoms that remain in certain minerals to determine the elapsed time since they were constituted—make it possible to estimate the time period when the rocks, and the fossils associated with them, were formed., small wormlike creatures with soft bodies.Evolutionists no longer are concerned with obtaining evidence to support the fact of evolution but rather are concerned with what sorts of knowledge can be obtained from different sources of evidence.The following sections identify the most productive of these sources and illustrate the types of information they have provided.The correspondence, bone by bone, can easily be seen not only in the limbs but also in every other part of the body.From a purely practical point of view, it is incomprehensible that a turtle should swim, a horse run, a person write, and a bird or a with forelimb structures built of the same bones.
Biological evolution is a process of descent with modification.