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Science Nation: Glowing Squid

2 minutes 33 seconds

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The Hawaiian bobtail squid and its resident bacterium, Vibrio fischeri, have a powerful and still somewhat mysterious symbiotic relationship. The luminescent bacteria populate a small pouch on the squid’s underside called the light organ, and provide a sort of “Klingon cloaking device.” They produce light at night to offset the squid’s shadow and hide it from predators when it approaches the ocean’s surface to feed. At the University of Wisconsin-Madison, microbiologist Margaret McFall-Ngai studies this unusual relationship. An understanding of these creatures’ rhythms could lead to new ways to treat disease. She is also studying how the squid and bacteria communicate, so they don’t harm each other.

Media Details

Runtime: 2 minutes 33 seconds

Science Nation
Episode 1
3 minutes 14 seconds
Grade Level: 7 - 12
Science Nation
Episode 2
3 minutes 9 seconds
Grade Level: 7 - 12
Science Nation
Episode 3
3 minutes 7 seconds
Grade Level: 7 - 12
Science Nation
Episode 4
3 minutes 47 seconds
Grade Level: 7 - 12
Science Nation
Episode 5
3 minutes 9 seconds
Grade Level: 7 - 12
Science Nation
Episode 6
3 minutes 6 seconds
Grade Level: 9 - 12
Science Nation
Episode 7
3 minutes 4 seconds
Grade Level: 9 - 12
Science Nation
Episode 8
3 minutes 3 seconds
Grade Level: 9 - 12
Science Nation
Episode 9
3 minutes 35 seconds
Grade Level: 7 - 12
Science Nation
Episode 10
3 minutes 19 seconds
Grade Level: 10 - 12