Journal Entry # 41 - Darwin Research Center

20 September 2002 - Matt

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History of the Galapagos Giant Tortoises

 
I won't try to explain the intricacies of big turtles to those reading this entry (or to anyone who isn't), but these guys were pretty amazing to see in person.  A couple of quick tidbits, for those who are curious:
  • Giant tortoises have been around for 30 million years.  That's a long time to you and me.

  • Way back when, some of the turtles made it to the Galapagos Islands, presumably on an overpriced tour, and decided to stay.  As they evolved to suit various climates and island conditions, each sub species gained slightly different adaptations (shell shape, size, etc). 

Check out that neck...  I wish I could do that

  • When the humans arrived in the 17th and 18th centuries, all hell broke loose.  After several months in a boat with other guys, even a tortoise looks attractive...  to eat (I'm not sure what you were thinking).  So, they butchered them, literally by the thousands.

  • Real threat of extinction came into play when the full impact of man's arrival was felt on the environment (introduced species like dogs, goats and pigs directly competed with or preyed upon the tortoises).

  • The Darwin Research Center (www.darwinfoundation.org) has worked diligently to reintroduce tortoises, and to date has successfully reintroduced 2500+ of the rascals.

 

   
   

 

Turtle Poop and Other Curiosities

 

Here's some good stuff...  Turtles have incredibly slow metabolisms.  So much so that they actually fail to process the majority of food that they eat.  So, these fun little piles of leaves are actually turtle poop.

Another interesting thing is that we were told that they don't have bones in their legs.  That's why they bend all around as if, well, as if they didn't have any bones in their legs.  Check out the pictures above.  Personally, I'm not to sure I buy that, but, if it's not true, these guys are really double jointed.  Maybe they do a lot of yoga.  I hear that's good for turtles.

Finally, these guys live to be really, really old... like 200 years (seriously).  They can survive for up to a year without food or water.  Ironically, this ability to survive is part of what led to their near extinction.  Sailors would take the turtles into their ships because they could survive for months in the hold of the ship, always guaranteeing fresh meat when the canned tuna ran out.