Erythrism

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A erythristic Welsh polecat

Erythrism or erythrochroism refers to an unusual reddish pigmentation of an animal's fur, hair, skin, feathers, or eggshells.[1]

Causes of erythrism include

  • genetic mutations which cause an absence of a normal pigment and/or excessive production of others[2]
  • diet, as in bees feeding on maraschino juice[3]

Erythrism in katydids has been occasionally observed. The coloring might be a camouflage that helps some members of the species survive on red plants.[4]

Gallery

See also

References

  1. Dariusz Bukaciński and Monika Bukacińska (1997), "Production of Erythristic Eggs by the Black-Headed Gull in Poland", Willson Bull. (Wilson Ornithological Society) 109 (1): 177–182, JSTOR 4163790 
  2. Helen Hays and Kenneth C. Parkes (1993), "Erythristic Eggs in the Common Tern", J. Field Ornithol (Association of Field Ornithologists) 64 (3): 341–345, JSTOR 4513830 
  3. Sarah Schmidt, Helping Brooklyn's Red Stingers Get Off The Juice, onearth.org, December 1, 2010
  4. Gary Noel Ross (1 June 2003), "Pretty in pink", Natural History 

External links

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