The transparent teeth 'makes its wide-open mouth, armed with saber-like teeth effectively disappear.'
Deep beneath the sea off the coast of California, there is a species of eel-like fish with a huge head, bulging eyes and a mouth full of transparent, fang-like teeth.
Their transparent teeth are an adaptation unique to the species—so researchers at San Diego's Scripps Institution of Oceanography were hoping to understand how and why this feature evolved. To do this, the team—made up of oceanographers and material scientists—analyzed the properties of the teeth.
They also found the mechanical properties of the enamel-like layer was comparable to the teeth of great white sharks and piranhas."However, the dentin, comparatively, is much harder and stiffer with a higher degree of mineralization and a lack of tubules, which is a mechanical trade-off to ensure transparency by reducing scattering," the scientists wrote.
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