iridescent
Image of the Day: Psychedelic Symbiosis
Image of the Day: Psychedelic Symbiosis
The Scientist Staff | Jul 12, 2017
Thanks to the bioluminescent bacteria inhabiting its light organ, the vividly colored southern bobtail squid (Euprymna tasmanica) can glow in the dark. 
Dinosaursā€™ Shiny Black Feathers
Cristina Luiggi | Mar 9, 2012
A 130 million-year-old winged dinosaur offers scientist the oldest evidence of iridescent feathers.