No I'm not. You said we cannot observe evolution, I countered by showing that we can observe exactly that amount of evolution we should be, given the time frame in which we've been watching. I actually said nothing against any creationist position.BurningHeart said:You are speaking about species fixity, an idea that creationists rejected years ago.
Those were all examples of the origin of new species. You never asked for the origin of new genes, but I'll be happy to oblige. One of the ways evolution creates new genes is through the proces of duplication and divergence. This can be inferred to have happened in the past through analysis of gene families in different taxa. Here is the abstract of one paper that goes into this sort of detail:BurningHeart said:All that has happened is a bridging between two existing species, there is no support or evidence for new genes,
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=15494476
Mammalian alpha-defensins constitute a family of cysteine-rich, cationic antimicrobial peptides produced by phagocytes and intestinal Paneth cells, playing an important role in innate host defense. Following comprehensive computational searches, here we report the discovery of complete repertoires of the alpha-defensin gene family in the human, chimpanzee, rat, and mouse with new genes identified in each species. The human genome was found to encode a cluster of 10 distinct alpha-defensin genes and pseudogenes expanding 132 kb continuously on chromosome 8p23. Such alpha-defensin loci are also conserved in the syntenic chromosomal regions of chimpanzee, rat, and mouse. Phylogenetic analyses showed formation of two distinct clusters with primate alpha-defensins forming one cluster and rodent enteric alpha-defensins forming the other cluster. Species-specific clustering of genes is evident in non-primate species, but not in the primates. Phylogenetically distinct subsets of alpha-defensins also exist in each species with most subsets containing multiple members. In addition, natural selection appears to have acted to diversify the functionally active mature defensin region but not signal or prosegment sequences. We concluded that mammalian alpha-defensin genes may have evolved from two separate ancestors originated from beta-defensins. The current repertoire of the alpha-defensin gene family in each species are primarily a result of repeated gene duplication and positive diversifying selection after divergence of mammalian species from each other, except for the primate genes, which were evolved prior to the separation of the primate species. We argue that the presence of multiple, divergent subsets of alpha-defensins in each species may help animals to better cope with different microbial challenges in the ecological niches which they inhabit.
Mammalian alpha-defensins constitute a family of cysteine-rich, cationic antimicrobial peptides produced by phagocytes and intestinal Paneth cells, playing an important role in innate host defense. Following comprehensive computational searches, here we report the discovery of complete repertoires of the alpha-defensin gene family in the human, chimpanzee, rat, and mouse with new genes identified in each species. The human genome was found to encode a cluster of 10 distinct alpha-defensin genes and pseudogenes expanding 132 kb continuously on chromosome 8p23. Such alpha-defensin loci are also conserved in the syntenic chromosomal regions of chimpanzee, rat, and mouse. Phylogenetic analyses showed formation of two distinct clusters with primate alpha-defensins forming one cluster and rodent enteric alpha-defensins forming the other cluster. Species-specific clustering of genes is evident in non-primate species, but not in the primates. Phylogenetically distinct subsets of alpha-defensins also exist in each species with most subsets containing multiple members. In addition, natural selection appears to have acted to diversify the functionally active mature defensin region but not signal or prosegment sequences. We concluded that mammalian alpha-defensin genes may have evolved from two separate ancestors originated from beta-defensins. The current repertoire of the alpha-defensin gene family in each species are primarily a result of repeated gene duplication and positive diversifying selection after divergence of mammalian species from each other, except for the primate genes, which were evolved prior to the separation of the primate species. We argue that the presence of multiple, divergent subsets of alpha-defensins in each species may help animals to better cope with different microbial challenges in the ecological niches which they inhabit.
The origin of new species is biological diversification.BurningHeart said:let alone for biological diversification
Is mega evolution macro evolution on steroids?BurningHeart said:or mega-evolution.
Who said anything about hybridization. However, since you are now trying to make some predictions for creationism, let me give you an area to investigate. Why do all species form a natural, nested hierarchy?BurningHeart said:Having the same underlying genetic material any two species of created kinds SHOULD be able to hybridize with each other upon regaining contact unless subsequent mutations have prevented that potential.
Actually, birds evolved from a specific kind of reptile, the dinosaurs. In fact, cladistically, they are dinosaurs, just as cladistically humans are apes. But that's an entirely different conversation. Since we lack dinosaur DNA, your assertion that genetic difference between birds and dinosaurs is immense seems unsupportable.BurningHeart said:They evolutionists push these points because they try to extrapolate this to mean that Mega-evolution (the origin of life and phyla separated by immense genetic differences (a reptile into a bird for instance)) is true.
Except that "kind" has no defined meaning, and genetic divergence of isolated populations can lead to large changes over a significant number of generation.BurningHeart said:This extrapolation cannot be made based on these cases, they are doing what they were created to do, reproducing, "each after its own kind".
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Evolutionists are evil racists and baby eaters. See, see, some bad people in the past said so.