Life
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
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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
The warty comb jelly is unique among animals, because its anus completely disappears when it has finished defecating