When animals light up: Bioluminescence
This is a model of an anglerfish, called that because of the modified spine sticking out of its forehead.
June 19th, 2012
08:00 AM ET

When animals light up: Bioluminescence

I can see them hovering in my Brooklyn yard: tiny balls of yellow light that flicker on and off in the dusk like lighters at a rock concert.

Fireflies are quite a common sight, although for how long we don't know. There have been widespread reports that firefly numbers are dwindling. The reports are all anecdotal, but they were enough of a concern for entomologists and biologists to hold a symposium in Thailand in 2008 entitled, "Diversity and Conservation of Fireflies." If fireflies are under threat, it's a terrible state of affairs.

Fireflies belong to a very exclusive group of land creatures that exhibit a phenomenon known as bioluminescence.

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Contributors

  • Elizabeth LandauElizabeth Landau
    Writer/Producer
  • Sophia DengoSophia Dengo
    Senior Designer