- Not to hijack this thread, but our book The Radiant Sea includes 35 pages of fluorescent animals (and humans.. and asparagus). Here is a young strawberry squid showing green fluorescence in the eyes and red fluorescent caps on its photophores. 🦑🧪🌊
- Fluorescent cycling jackets have dyes that absorb invisible ultraviolet (UV) light and re-emit visible light. This UV can pass through clouds & there's lots on a dull day. So the jacket gets a brightness boost. This is also what "optical brighteners" in laundry powder do (see pic). Also scorpions!
