Q:

Why does ocean water glow at night?

A:

Quick Answer

The glowing of ocean water is due to bioluminescent plants and animals. The glow may range from blue to green and is strongest when the water is disturbed.

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Full Answer

Some plants and animals produce light using their photospores, which are light producing organs. They emit light through a chemical process that involves a protein called luciferin. Luciferin releases energy photons, which produces a glow.

Animals with this ability may produce light to attract prey or to attract a mate. Some use this glow to distract or confuse predators.

This bioluminescence is not hazardous to the health of ocean creatures and does not pose a threat to human health.

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