Here is a fun survey about the human perception of coral reef diversity. You get to look at pretty fish if you take it: https://www.biodiful.org/#/fisheyes_eng
I guess they need more people outside France to participate (they are French), so if you want to spend 5 minutes looking at pictures of fish, you can do that!
A community that skews thoughtful and weird. Everyone who abides by the code of conduct is welcome, thoughtful weirdos most of all! :)