Some deep-sea fish have evolved souped-up colour night vision

Several species of fish living in the deep ocean have evolved extra copies of genes that enable them to see a range of colour hues in the near-darkness

Source:
https://www.newscientist.com/article/2202254-some-deep-sea-fish-have-evolved-souped-up-colour-night-vision/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home