Editing Red (section)

=== Blood and other reds in nature ===
{{More citations needed|section|date=July 2021}}
Oxygenated blood is red due to the presence of oxygenated [[hemoglobin]] that contains iron molecules, with the iron components reflecting red light.<ref name="UCSBblood">{{cite web |title=Why is blood red? |url=http://scienceline.ucsb.edu/getkey.php?key=2419 |website=[[University of California, Santa Barbara]] |access-date=3 October 2015 |archive-url=https://web.archive.org/web/20150920120837/http://scienceline.ucsb.edu/getkey.php?key=2419 |archive-date=20 September 2015 |url-status=dead }}</ref><ref>{{cite web|url=http://www.medicinenet.com/hemoglobin/article.htm|title=Hemoglobin|last=Nabili|first=Siamak|website=Procedures and Tests|publisher=MedicineNet|page=1|archive-url=https://web.archive.org/web/20100323145336/http://www.medicinenet.com/hemoglobin/article.htm|archive-date=March 23, 2010|url-status=dead|access-date=Apr 12, 2010}}</ref> Red meat gets its color from the iron found in the [[myoglobin]] and hemoglobin in the muscles and residual blood.<ref>{{Cite journal|last1=Fleming|first1=H. P.|last2=Blumer|first2=T. N.|last3=Craig|first3=H. B.|date=1960-11-01|title=Quantitative Estimations of Myoglobin and Hemoglobin in Beef Muscle Extracts|journal=Journal of Animal Science|language=en|volume=19|issue=4|pages=1164–1171|doi=10.2527/jas1960.1941164x|issn=0021-8812|via=[[WorldCat]]}}</ref>

Plants like [[apple]]s, [[Garden strawberry|strawberries]], [[cherry|cherries]], [[tomato]]es, [[Capsicum|peppers]], and [[pomegranate]]s are often colored by forms of [[carotenoid]]s, red pigments that also assist [[photosynthesis]].<ref>{{cite web |url=http://www.ucmp.berkeley.edu/glossary/gloss3/pigments.html |title=Photosynthetic Pigments |last=Speer |first=Brian |website=UCMP Glossary |publisher=University of California Museum of Paleontology |access-date=22 April 2010 |location=University of California |archive-url=https://web.archive.org/web/20100616181829/http://www.ucmp.berkeley.edu/glossary/gloss3/pigments.html |archive-date=16 June 2010 |url-status=live }}</ref>

<gallery mode="packed" heights="150px">
Agarplate redbloodcells edit.jpg|Red blood cell [[agar plate|agar]]. Blood appears red due to the iron molecules in blood cells.
Can Setter dog GFDL.jpg|A [[red setter]] or Irish setter
Red Fox (Vulpes vulpes) -British Wildlife Centre-8.jpg|A pair of European [[red fox]]es
Erithacus-rubecula-melophilus Dublin-Ireland.jpg|The [[European robin]] or robin redbreast
</gallery>