Geology relative dating animation
The types of bird beaks, the colors of moths, leg sizes, etc. Each type and length of beak a finch can have is already in the gene pool and adaptive mechanisms of finches.Creationists have always agreed that there is variation within species.Only mutations in the reproductive (germ) cells of an animal or plant would be passed on.Mutations in the eye or skin of an animal would not matter.Believing in beneficial mutations is like believing a short-circuit in the motherboard of your computer could improve its performance.
"Despite decades of sustained selection in relatively small, sexually reproducing laboratory populations, selection did not lead to the fixation of newly arising unconditionally advantageous alleles." "The probability of fixation in wild populations should be even lower than its likelihood in these experiments." --Burke, Molly K., Joseph P. Most long-term evolution experiments thus far have been performed in bacteria or haploid yeast populations, where, in most environments, there exist a number of loss-of-function mutations that provide a selective advantage." "For instance, sterility in yeast provides a selective advantage by eliminating unnecessary gene expression." "The emergence of the Cit phenotype is the exception in experimental evolution, where most evolved mutations affect independent genes and biological pathways, driven largely by large-target loss-of-function mutations."This candid admission is from the evolutionist journal Nature: "Darwin anticipated that microevolution would be a process of continuous and gradual change.
But parts of living creatures are constructed of intricate components with connections that all need to be in place for the thing to work, controlled by many genes that have to act in the proper sequence.
Thus all the right mutations (and none of the destructive ones) must happen at the same time by pure chance. To illustrate just how hopeless it is, imagine this: on the ground are all the materials needed to build a house (nails, boards, shingles, windows, etc.).
The term macroevolution, by contrast, refers to the origin of new species and divisions of the taxonomic hierarchy above the species level, and also to the origin of complex adaptations, such as the vertebrate eye.
Macroevolution posed a problem to Darwin because his principle of descent with modification predicts gradual transitions between small-scale adaptive changes in populations and these larger-scale phenomena, yet there is little evidence for such transitions in nature.
A human generation takes about 20 years from birth to parenthood.