GALAPAGOS IGUANA GENE MIX described in Nature 522,131 10 June and
Proceedings of the Royal
Society B doi: 10.1098/rspb.2015.0425 3 June 2015. An international group of scientists has analysed
genomes of 513 individuals of the marine iguana Amblyrhynchus cristatus, which lives on the island of San Cristóbal in the Galapagos Islands. They
found that the population was divided into two subgroups that differed by body size and location on the island, smaller animals with longer heads on the north eastern part of the island, and larger animals with shorter heads on the south western part. There seemed to be little interbreeding between these populations, and the researchers claim this a case of “incipient speciation of sister lineages within the same island—ostensibly initiated by volcanic events”. However they also found there was “frequent hybridisation with migrants from nearby islands”. The research team began the abstract (summary) of their report with the statement: “The effects of the direct interaction between hybridization and speciation—two major contrasting evolutionary processes—are poorly understood”. They concluded with the suggestion that the mix of speciation and hybridisation is a mechanism for “enhancing the evolutionary potential of the species as a whole”.
ED. COM. Time to place all cards on the table you evolutionists and admit that the effects of hybridisation and speciation are only poorly understood if you are trying to use them to explain how iguanas evolved. Consider what we know for sure is happening here. As the researchers suggest, the two groups on the one have been separated by lava flows on the island. Therefore their low rate of interbreeding is due to lack of opportunity, rather than lack of ability. However, neither has changed into a different species. The difference in body and head size is a minor variation, and is the result of inbreeding reinforcing whatever characteristics were dominant in the populations when they first were separated. The genes associated with iguanas from other islands indicate that all the Galapagos Iguanas can have fertile offspring, and
therefore cannot be regarded as separate species either. Anyone who opens their eyes to the real living Iguanas can see that all the Galapagos Iguanas belong to one kind, and “speciation” and “hybridisation” are simply the result of subgroups of the same kind being separated, but occasionally meeting up again. So overall, nothing is “poorly understood” except by evolutionists who are looking for what’s not actually there, but then evolution has never been interested in real science anyway! It pays to note that genome studies of
Evidence News 11/15 – 8th July 2015
Creation Research Pty Ltd ACN 083 158 347
the Galapagos finches and tortoises have shown similar results. See our reports: Finch Gene Flow here and Extinct Tortoises Alive here. (Ref. genetics, species, reptiles). Creation Research.
Society B doi: 10.1098/rspb.2015.0425 3 June 2015. An international group of scientists has analysed
genomes of 513 individuals of the marine iguana Amblyrhynchus cristatus, which lives on the island of San Cristóbal in the Galapagos Islands. They
found that the population was divided into two subgroups that differed by body size and location on the island, smaller animals with longer heads on the north eastern part of the island, and larger animals with shorter heads on the south western part. There seemed to be little interbreeding between these populations, and the researchers claim this a case of “incipient speciation of sister lineages within the same island—ostensibly initiated by volcanic events”. However they also found there was “frequent hybridisation with migrants from nearby islands”. The research team began the abstract (summary) of their report with the statement: “The effects of the direct interaction between hybridization and speciation—two major contrasting evolutionary processes—are poorly understood”. They concluded with the suggestion that the mix of speciation and hybridisation is a mechanism for “enhancing the evolutionary potential of the species as a whole”.
ED. COM. Time to place all cards on the table you evolutionists and admit that the effects of hybridisation and speciation are only poorly understood if you are trying to use them to explain how iguanas evolved. Consider what we know for sure is happening here. As the researchers suggest, the two groups on the one have been separated by lava flows on the island. Therefore their low rate of interbreeding is due to lack of opportunity, rather than lack of ability. However, neither has changed into a different species. The difference in body and head size is a minor variation, and is the result of inbreeding reinforcing whatever characteristics were dominant in the populations when they first were separated. The genes associated with iguanas from other islands indicate that all the Galapagos Iguanas can have fertile offspring, and
therefore cannot be regarded as separate species either. Anyone who opens their eyes to the real living Iguanas can see that all the Galapagos Iguanas belong to one kind, and “speciation” and “hybridisation” are simply the result of subgroups of the same kind being separated, but occasionally meeting up again. So overall, nothing is “poorly understood” except by evolutionists who are looking for what’s not actually there, but then evolution has never been interested in real science anyway! It pays to note that genome studies of
Evidence News 11/15 – 8th July 2015
Creation Research Pty Ltd ACN 083 158 347
the Galapagos finches and tortoises have shown similar results. See our reports: Finch Gene Flow here and Extinct Tortoises Alive here. (Ref. genetics, species, reptiles). Creation Research.
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