Wild Fact #950 – Star Struck – Starfish

Photo compliments of http://www.myspecialks.com

Photo compliments of http://www.myspecialks.com

Well Happy Friday folks!  I hope everyone has something fun planned for halloween! I am sure all the little trick or treaters will be excited for this weekend.  If you are dressing up for Halloween I would be interested in hearing what you are going out as so please leave me a comment.  This will be my first year handing out candy to the little rug rats so it should be fun!

Unfortunately, today’s post is not Halloween themed but just because it isn’t spooky and scary doesn’t mean it won’t be interesting.  Today we are all going to learn how the stars move.  No of course not the stars in the sky, I mean the ones in the ocean.  Of course I am referring to starfish!  So how do these crusty stars get from point A to point B? Believe it or not they use their feet!  Did you know that starfish have numerous tiny feet on the bottom of each arm.  They are able to draw water into their tube feet. Similarly, the vascular system of the starfish is also filled with sea water.  By moving this vascular water to the feet they are able to propel themselves which obviously allows them to move around.  If you are looking for a gift for that special sea star in your life then I suggest buying them some water proof shoes or maybe rubber boots.

As well, the starfish has a tiny white spot underneath them that actually filters the sea water that is heading for the vascular system.  This little spot helps fill up the vascular tanks and consequently assists with locomotion.  For a quick video of a starfish moving, check out the YouTube clip below.

Starfish Fast Fact: Did you know that most starfish have 5 arms but there are some that have 10, 20 and even as many as 40 arms!  As well, remember that just because they are called starfish they are not really fish and are actually an echinoderm which is closely related to sea urchins and sand dollars.

Thanks for reading and Happy Halloween!

18 Responses

  1. Bev Lawrence 8 years ago
    • Nathan Nathan 8 years ago
  2. plainolebob 8 years ago
    • Nathan Nathan 8 years ago
  3. anml_lvr 8 years ago
    • Nathan Nathan 8 years ago
  4. Pau 8 years ago
    • Nathan Nathan 8 years ago
  5. Man Over Board 8 years ago
    • Nathan Nathan 8 years ago
  6. Jen 8 years ago
    • Nathan Nathan 8 years ago
  7. Meam Wye 8 years ago
    • Nathan Nathan 8 years ago
  8. SJ Tavo 8 years ago
    • Nathan Nathan 8 years ago
  9. Clayton 8 years ago
    • Nathan Nathan 8 years ago

Add Comment