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Contact: Myles Gough
University of New South Wales

SEM of Sea Urchin's Spine Segment

Caption: Left: This is a cross-section of the spine showing its hollow center and porous wall architecture (scale bar = 1.0 millimeter). Right: This is the outer surface of the spine. Barbs point toward the spine's tip (scale bar = 200 micro meters).

Credit: Dr Naomi Tsafnat

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Related news release: Sea urchin's spiny strength revealed

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