This sounds strange, but the humble sea star offers clues to how some of our body’s most complicated organs are built.
“Most of our organs are tubular, because they need to transport fluids or gasses or food or blood. And more complex organs like the heart start as a tube and then develop different structures.
, in some organisms such as flies, “there is a big round of cell proliferation before all the cells start to make very complex migration patterns to elongate, change their shapes, and become a tube.”
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