• Please use real names.

    Greetings to all who have registered to OPF and those guests taking a look around. Please use real names. Registrations with fictitious names will not be processed. REAL NAMES ONLY will be processed

    Firstname Lastname


    We are a courteous and supportive community. No need to hide behind an alia. If you have a genuine need for privacy/secrecy then let me know!
  • Welcome to the new site. Here's a thread about the update where you can post your feedback, ask questions or spot those nasty bugs!

Clivia blossoming

Asher Kelman

OPF Owner/Editor-in-Chief
Hello Klaus,

I wonder whether the insects are able to discriminate between different wavelengths in the UV range. After all, a lot of molecules have specific peaks of high absorption. IOW, is it possible that insects see in multicolor images, not monochrome as shown here.

I know with butterflies you show several false colors, but what's the background for such presentations.