Tippets: Underwater Photography Techniques, Blood Pressure of Fish Gills

March 6, 2015 By: Erin Block

  • There are unique aspects to consider when composing an underwater photography shot. Matt Jones outlines some of the most reliable tips for success in a recent article on Hatch Magazine.
  • As anglers know, fish gills are delicate, but the science behind the fact is that they are thin-walled and are easily damaged if the blood pressure gets too high. Their unique hearts help regulate this, explains Don Moore III, senior scientist at the Smithsonian’s National Zoo in a recent article on “Strange Animal Hearts” via LiveScience.