This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
Seems to depend on the species but humans see from about 390 to 700nm, mantis shrimp apparently see about 300 to 720. So they can detect into the infrared and a little into the ultraviolet, and then ten or so steps in between.
Seems to depend on the species but humans see from about 390 to 700nm, mantis shrimp apparently see about 300 to 720. So they can detect into the infrared and a little into the ultraviolet, and then ten or so steps in between.