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salad-
Apparently it is true.
Why would it not be?
ETA - Rodents and bats - check it out. -
Check out puffin beaks
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the part about animals being able to see the UV spectrum
Doesn't seem that surprising if you already know that many animals can hear a few octaves above humans. UV-A is only about half an octave above the green peak of human perception. UV is not special in optical terms, it's defined in human terms as the first colour going up that people can't see. We know the human optical system can transmit UV because it damages the retina.
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Some creatures see above our spectrum and some below our visual range.
Look up cats and dogs vision works. We know thing dogs see in colour where before we thought black and white
JurekB
Sumo
gbj_tester
lynx
Nope. Try it.
Banana and UV light is all you need.
ETA - You'll have to trust me on the bit about animals having UV on their visible spectrum .
ETFA - Hint - Google 'banana & black light'.