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Warm-blooded Fish?

Posted by Hemos on from the sounds-mighty-fishy-fishy-har-de-har dept.

DIY News writes "Scientists now have direct evidence that the north Pacific salmon shark maintains its red muscle at 68-86 degrees Fahrenheit, much warmer than the 47 F water in which it lives. The elevated muscle temperature presumably helps the salmon shark survive the cold waters of the north Pacific and take advantage of the abundant food supply there. The heat also appears to factor into the fish's impressive swimming ability."

3 of 342 comments (clear)

  1. Re:I knew it! by RembrandtX · · Score: 0, Offtopic

    was that land-dinosaur of north america ? or lard-dinosaur of north america ?

    --

    --Ne auderis delere orbem rigidum meum, non erravi pernicose!
  2. Re:I knew it! by VikingBerserker · · Score: 0, Offtopic

    Sharks != Fish; Sharks = Invertebrates

  3. Re:I knew it! by mcheu · · Score: 0, Offtopic

    Well, if you want to nitpick, sharks aren't technically fish either as they don't have a bone skeleton.

    Of course, if you nitpick enough, you'll probably find this isn't true either.