This isn't a lighting trick or some product of genetic engineering.
Researchers with the American Museum of Natural History released these photographs as part of a study of naturally glowing fish species released this week.
Biologists identified about 180 varieties of fish that can create their own light shows!
It's called "bioflourescence" (bio-floor-essence) and it happens when an organism absorbs blue light, transforms it and emits it as another color.
Scientists say that animals like corals, jellyfish and butterflies, and even a few parrots have also been known to glow in the dark.
You may also like...
Weird Florida: A look back at some of the strangest stories of the year
Miracle Baby: Tampa toddler has 5-organ transplant
Broke Bad: Contest winner busted in synthetic drug ring
Here kitty, kitty: Lion escapes enclosure at Pasco sanctuary
Fake Cop: Man arrested 3 times for impersonating officer
Animal tragedy: Girl's miniature horse attacked by dogs
#ShortYellows: Florida quietly shortened yellow lights
Kittens shot: Officer shoots kittens in front of children
Popular photo galleries:
Faces of Meth: Devastating before and after photos of meth abusers
Trayvon Martin Shooting: Trayvon Martin crime scene photos and George Zimmerman injury photos
Hooters Winners: Winners of the 2013 Hooters swimsuit pageant
Rejected: Funny Florida license plates rejected by the DMV ***warning graphic***
Deadly sinkhole: Home collapses, man dies in giant sinkhole
Florida Sex Offenders: Look up sex offenders in any Florida neighborhood here
Restaurant Inspections: Look up inspection reports for any Florida restaurant here
The American Museum of Natural History via CNN Newssource