In a discovery that blurs the line between biology and technology, scientists have found that heart-shaped clams use fiber optic–like structures to channel sunlight through their shells in much the same way that telecommunications company use fiber optics to deliver high-speed internet connectivity into homes.
This innovation, a first known example of bundled fiber optics in a living creature, helps to explain how heart cockles (Corculum cardissa) — a marine bivalve found in shallow waters across the Indian and Pacific Oceans — harness sunlight to nourish symbiotic algae living within, while protecting them from harmful ultraviolet rays. In return, the algae provide the clams with sugars and other essential
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