Glowing, gutsy hitchhikers
Bacteria glow to get across the ocean inside animals’ guts
By Stephen Ornes, 20:05 PM January 10, 2012
To hungry humans, glow-in-the-dark food may seem suspicious and unappetizing. To creatures that swim, slither and crawl in the darkest depths of the ocean, however, a glowing bug may be a welcome and easy snack.
Scientists have come up with many ideas about why organisms light up. New experiments on tiny, glow-in-the-dark bacteria that live in the sea support the idea that a microbe’s glow isn’t just for show. Hungry animals are attracted to the light and eat the microbes, which then cruise ...
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