Anemones on Rock, Ultraviolet Light, Edmonds, Washington

Two anemones glow under ultraviolet light at low tide in the intertidal zone at Olympic Beach in Edmonds, Washington. The vibrant colors are the result of fluorescence, a type of photoluminescence, in which certain chemicals absorb light that is invisible to human eyes and emit some of it at a different wavelength that we can see. This scene was captured under black light.