<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">melanin</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31316546</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:25:14</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dc:description xml:lang="en"><![CDATA[ Dark biological pigment (biochrome) that produces buff, red-brown, brown, and black colors. Melanin occur widely in the feathers of birds; in hair, eyes, and skin of mammals, including humans; in skin or scales of many fishes, amphibians, and reptiles; in the ink of cephalopods (octopus, squid); and in various tissues of many invertebrates. Melanin protects the skin from ultraviolet radiation, and an increase in melanin is responsible for the so-called tanning of human skin exposed to sunlight. It is used as a colorant, particularly as it occurs in cuttlefish ink. Dark biological pigment (biochrome) that produces buff, red-brown, brown, and black colors. Melanin occur widely in the feathers of birds; in hair, eyes, and skin of mammals, including humans; in skin or scales of many fishes, amphibians, and reptiles; in the ink of cephalopods (octopus, squid); and in various tissues of many invertebrates. Melanin protects the skin from ultraviolet radiation, and an increase in melanin is responsible for the so-called tanning of human skin exposed to sunlight. It is used as a colorant, particularly as it occurs in cuttlefish ink. ]]></dc:description></metadata>