#Fishers discover first-of-its-kind bright orange #shark with two rare conditions in #Caribbean
The bright orange #nurseshark (Ginglymostoma cirratum) off #CostaRica had a mysterious condition called #xanthism, or #xanthochroism, which increases yellow pigmentation in the #skin. Researchers have recorded xanthism in several animals, but this is the first definitive case of a nurse shark with the trait. The shark also appears to have albinism, making it even more unusual.
https://www.livescience.com/animals/sharks/fishers-discover-first-of-its-kind-bright-orange-shark-with-two-rare-conditions-in-caribbean

'One in a million' yellow cardinal sighted at backyard feeder https://boingboing.net/2018/02/26/one-in-a-million-yellow-ca.html #geneticmutation #yellowcardinal #xanthochroism #ornithology #Wildbird #alabama #plumage #Video #birds #Post