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Discus fish image credit: Pixabay / Bergadder |
To read the rest, click on "Does Gill Embryology Show Fish Evolved from a Common Ancestor?"Can a landmark discovery about how fish embryos grow their gills connect us firmly to roots under the sea? Cambridge University zoologists J. Andrew Gillis and Olivia R.A. Tidswell think so.Fish use gills to extract oxygen from water. Evolutionists maintain that vertebrates without gills—like us—have gills “present as vestiges in our own embryology.”1 (More on that below.) But where did gills come from in the first place? Enquiring evolutionists want to know! To find out, they look for similarities in the gills of different sorts of fish embryos. They hope to thereby unveil the gills of the common evolutionary ancestor of all fish and to gain a clue about how very different groups of fish—jawless, bony, and cartilaginous—diverged.
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