Newly Discovered Ruby Sea Dragon Seen Alive First Time

Discussion in 'Celebrate Biodiversity' started by chimera, Jan 13, 2017.

  1. chimera

    chimera Well-Known Member 10 Years

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    Last edited: Jan 13, 2017
  2. thanrose

    thanrose Active Member

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    Beautiful and strange! And so red while living at a depth where color is irrelevant. Of course, the orange roughy fish is also bright red at three times the depth of this ruby sea dragon.
     
  3. vitog

    vitog Well-Known Member

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    Many fish and other animals living at intermediate depths in the sea are colored red, presumably because red light does not penetrate as far as other colors. Blue light penetrates to those depths, but red light does not; so red fish will appear black. That is probably why the ruby sea dragon does not have the leafy appendages of the related species; it does not need them for camouflage. In even deeper waters no light penetrates, and there is no advantage to being red.
     

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