Skip to main content

View Diary: Overnight News Digest: Happy Birthday Rodin edition (61 comments)

Comment Preferences

  •  by numbers (11+ / 0-)

    The world is a college of corporations, the world is a business Mr. Beale - Network ~ Montana initiative 166: corporations are not entitled to constitutional rights because they are not human beings; in MT money is not speech; it's property.

    by anyname on Mon Nov 12, 2012 at 09:07:05 PM PST

    •  Axon length in a giraffe is remarkable (3+ / 0-)
      Recommended by:
      maggiejean, anyname, hazey

      Those of Blue Whales may be even more so - to the point that a stimulus at the tip of their tails may take a considerable time to reach their brains.

      "So, please stay where you are. Don't move and don't panic. Don't take off your shoes! Jobs is on the way."

      by wader on Mon Nov 12, 2012 at 10:13:37 PM PST

      [ Parent ]

      •  blood pressure (3+ / 0-)
        Recommended by:
        wader, hazey, maggiejean
        Blood Pressure

            Because the giraffe's head is so much farther above its heart than in any other creature (8 to 10 feet), it takes a lot of power to get blood up there. To accomplish this, giraffes have huge hearts of around 25 lbs. (40 times larger than human hearts), along with extremely high blood pressure, nearly twice that of humans.

            Giraffes' extremely high blood pressure would be extremely dangerous in humans and other animals; however, giraffes have adapted to it by the process of natural selection. This means that animals that could not handle the trait died out, so that only those that survived were able to breed and carry on the trait.

            When giraffes bend down to take a drink of water (not such an easy task with such long legs--they must splay their legs out to almost a 45-degree angle to reach the ground!), a series of valves in their neck veins slow the blood flow and keep blood from rushing to the head. This adaptation was necessary because without it, the rush of blood to the head due to extremely high blood pressure would cause severe damage every time they bent down.

        http://www.ehow.com/...

        The world is a college of corporations, the world is a business Mr. Beale - Network ~ Montana initiative 166: corporations are not entitled to constitutional rights because they are not human beings; in MT money is not speech; it's property.

        by anyname on Mon Nov 12, 2012 at 10:38:36 PM PST

        [ Parent ]

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site