United States Centennial Commission. International Exhibition. 1876 Official Catalogue. Part II. Art Gallery, Annexes, and Out-Door Works of Art. Department IV.--Art. Sixth and Revised Edition.
Four-limbed vertebrates, known as tetrapods, have two enlarged regions in their spinal cords. Meanwhile, it was long thought ...
Four-limbed vertebrates, known as tetrapods, have two enlarged areas in their spinal cords. The two enlargements have a correlation with the forelimbs ...
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