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fish, reptiles and birds are therefore trichromatic or tetrachromatic, while all mammals, with the exception of some primates and marsupials, are dichromats or monochromats (totally color blind).
peixes, aves e répteis são tricromatas e até tetracromatas, enquanto todos os mamíferos, com exceção de alguns primatas e dos marsupiais, são dicromatas ou monocromatas (são completamente "cegos" à cores).