All vertebrates (with the notable exception of the ice fish family Channichthyidae) use hemoglobin t

All vertebrates (with the notable exception of the ice fish family Channichthyidae) use hemoglobin to transport oxygen to various organs and tissues.While the universality of hemoglobin in vertebrates can lead to a heated debate about whether it is evidence for evolution (as it shows a common ancestor), or for intelligent design, (seeing as hemoglobin is the best option for this job for vertebrate physiology), its genetic code leaves no doubt.By organizing different vertebrate species by how similar their Hemoglobin-coding genes are, we are able to show that animals that are predicted to be closer to each other on the evolutionary tree of life, are also the closest in this hemoglobin mesh. Then, why would specially created species have Hemoglobin genes that look alike, despite very little difference in the proteins function? And is it a coincidence that these similarities follow the allegedly false evolutionary relationships? The answer is probably obvious. -- source link
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