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This 69-Million-Year-Old Duck-like Skull Reveals How Modern Birds Survived the Dinosaurs
In the icy wilderness of Antarctica, where glaciers now dominate the landscape, scientists have unearthed a fossil that ...
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The Integumentary System: Your Skin, Hair, Nails, and Glands
To function as a protective barrier, it must cover the entire outside of the body, from the top of a person’s head to the end of the toes ... National Cancer Institute. Anatomy of the skin. Kim JY, ...