Beberapa [[penglihatan burung|burung]] dan [[kupu-kupu]] memiliki lima atau lebih reseptor warna di reninaretina mereka sehingga mereka dipercaya pentakromatik.<ref>[http://www.springerlink.com/content/q77725639466x474/ Wavelength discrimination in the ‘visible’ and ultraviolet spectrum by pigeons, Jacky Emmerton1, and Juan D. Delhis, Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. Volume 141, Number 1. March, 1980]</ref> Penelitian juga membuktikan bahwa [[lamprey]] juga pentakromatik.<ref>[http://www.fasebj.org/cgi/content/abstract/fj.06-8057comv1?ck=nck Functional characterization, tuning, and regulation of visual pigment gene expression in an anadromous lamprey -- Davies et al., 10.1096/fj.06-8057com -- The FASEB Journal]</ref>
==Pentakromatik dapat melihat 10 miliar warna yang berbeda==
