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Understated here is that cuttlefish manage to match their surrounding's color while being color-blind, in the sense of lacking color receptors. It's thought tha
by z2 9y ago
Understated here is that cuttlefish manage to match their surrounding's color while being color-blind, in the sense of lacking color receptors. It's thought that their pupils have such wild shapes because they can somehow use chromatic aberration blur patterns to distinguish colors. See http://www.pnas.org/content/early/2016/07/01/1524578113 http://www.pnas.org/content/early/2016/07/01/1524578113
- VohuMana 9y agoI already thought cuttlefish were awesome but reading that they are using chromatic aberration to distinguish colors blows my mind! Thanks for sharing!
- aaroninsf 9y agoTIL cuttlefish not seeing magenta is more interesting than many animals' not being able to see magenta.
- nradov 9y agoMost aquatic animals see longer wavelength colors poorly because water filters out that light just a few meters deep. Below the surface everything looks shades of blue or gray.
- aaroninsf 9y ago* looks to us :) https://en.wikipedia.org/wiki/What_Is_it_Like_to_Be_a_Bat%3F https://en.wikipedia.org/wiki/What_Is_it_Like_to_Be_a_Bat%3F came to mind
- evolve2017 9y agoI'm not an expert, but this seems like an area of debate. See a reply to that article: http://www.pnas.org/content/113/45/E6908 http://www.pnas.org/content/113/45/E6908