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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">material de queratina</topic></authority><related type="narrower"><topic>pluma</topic></related><related type="narrower"><topic>cuerno</topic></related><related type="narrower"><topic>caparazón de tortuga</topic></related><related type="narrower"><topic>escama</topic></related><related type="narrower"><topic>ballena</topic></related><related type="narrower"><topic>[pelo y componentes del pelo]</topic></related><related type="narrower"><topic>púa</topic></related><related type="narrower"><topic>pezuña</topic></related><related type="narrower"><topic>pico</topic></related><related type="narrower"><topic>hawksbill shell (traducció pendent)</topic></related><related type="narrower"><topic>turtle shell (traducció pendent)</topic></related><related type="broader"><topic>material animal</topic></related></mads>