Lumiloop plankton are curious, donut-shaped aquatic creatures. While
stationary, they have the ability to spin at a very high rate of speed.
As they spin, the Lumiloop emit unique sounds and a fascinating
ring-shaped glow. Lumiloop plankton seem to always grow in clusters of
five. They produce sounds at different pitches as they spin together,
creating a beautiful harmony. This is called a pentatonic scale.
Depending on where they live, Lumiloop plankton that produce several
different sounds have been identified.